diff --git a/docker-compose.yml b/docker-compose.yml
index c7fb353..7b0bfe7 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -16,6 +16,8 @@ services:
       retries: 10
     networks:
       - app-network
+    ports:
+      - "5434:5432"
   nats:
     image: nats:2.9
     volumes:
diff --git a/docs/2_architecture/20251129_refactor_history_context.md b/docs/2_architecture/20251129_refactor_history_context.md
new file mode 100644
index 0000000..df11d5b
--- /dev/null
+++ b/docs/2_architecture/20251129_refactor_history_context.md
@@ -0,0 +1,112 @@
+# 设计文档：统一历史记录与上下文管理重构
+
+## 1. 目标
+实现一个统一且一致的历史管理系统，达成以下目标：
+1. **原子化历史记录**：一个“历史记录”严格对应**一次 Workflow 执行**（由 `request_id` 标识），彻底解决历史列表重复/碎片化问题。
+2. **单一数据源**：全局上下文（VGCS/Git）作为所有文件产物（报告、日志、数据）的唯一真实存储源。
+3. **轻量化索引**：数据库（`session_data` 或新表）仅存储结构化的“索引”（Snapshot），指向 VGCS 中的 Commit 和文件路径。
+
+## 2. 现状分析
+- **碎片化**：目前 `analysis_results` 表存储的是单个 Task 的结果。如果一个工作流包含 N 个分析步骤，历史列表中就会出现 N 条记录。
+- **数据冗余**：结果内容（Markdown 等）既作为文件存在 VGCS 中，又作为文本列存在 Postgres 数据库中。
+- **历史视图缺失**：缺乏一个能够代表整次执行状态（包含拓扑结构、状态、所有产物引用）的根对象，导致查询历史列表时困难。
+
+## 3. 架构方案
+
+### 3.1. 核心概念：工作流快照 (Workflow Snapshot)
+不再将每个 Task 视为独立的历史记录，我们定义 **Workflow Snapshot** 为历史的原子单位。
+
+一个 Snapshot 包含：
+- **元数据**：`request_id`（请求ID）, `symbol`（标的）, `market`（市场）, `template_id`（模板ID）, `start_time`（开始时间）, `end_time`（结束时间）, `final_status`（最终状态）。
+- **拓扑结构**：DAG 结构（节点与边）。
+- **执行状态**：针对每个节点记录：
+    - `status`：状态 (Completed, Failed, Skipped)
+    - `output_commit`：该节点产生的 VGCS Commit Hash。
+    - `artifacts`：产物映射表，Key 为产物名称，Value 为 VGCS 文件路径 (例如 `{"report": "analysis/summary.md", "log": "analysis/execution.log"}`)。
+
+### 3.2. 数据存储变更
+
+#### A. `workflow_history` 表 (或重构后的 `session_data`)
+我们将引入一张专用表（或规范化 `session_data` 的使用）来存储 **Workflow Manifest**。
+
+```sql
+CREATE TABLE workflow_history (
+    request_id UUID PRIMARY KEY,
+    symbol VARCHAR(20) NOT NULL,
+    market VARCHAR(10) NOT NULL,
+    template_id VARCHAR(50),
+    status VARCHAR(20) NOT NULL, -- 'Completed', 'Failed'
+    start_time TIMESTAMPTZ NOT NULL,
+    end_time TIMESTAMPTZ,
+    
+    -- Snapshot JSON 数据
+    snapshot_data JSONB NOT NULL 
+    -- {
+    --   "dag": { ... },
+    --   "tasks": {
+    --     "task_id_1": { "status": "Completed", "commit": "abc1234", "paths": { "report": "..." } }
+    --   }
+    -- }
+);
+```
+
+*注：为了减少迁移摩擦，我们可以继续使用 `session_data` 表，并指定 `data_type = 'workflow_snapshot'`，但建立专用表更有利于查询和维护。*
+
+#### B. VGCS (Git 上下文) 的使用规范
+- **输入**：初始 Commit 包含 `request.json`。
+- **过程**：每个 Task (Worker) 检出基础 Commit，执行工作，写入文件（报告、日志），并创建 **New Commit**。
+- **合并**：Orchestrator 负责追踪这些 Commit 的 DAG 关系。
+- **终态**：Orchestrator 创建最终的“Merge Commit”（可选，或仅引用各叶子节点的 Commit）并在 `workflow_history` 中记录。
+
+### 3.3. 组件职责划分
+
+#### 1. Worker 服务 (Report Gen, Providers)
+- **输入**：接收 `base_commit`, `task_id`, `output_path_config`。
+- **动作**：
+    - 初始化 `WorkerContext` (VGCS)。
+    - 将 `report.md` 写入 `output_path`。
+    - 将 `_execution.md` (日志) 写入 `log_path`。
+    - **Commit**：提交更改，生成 Commit Hash。
+- **输出**：返回 `new_commit_hash` 和 `artifact_paths` (Map<Name, Path>) 给 Orchestrator。
+- **禁止**：Worker 不再直接向数据库的 `analysis_results` 表写入数据。
+
+#### 2. Workflow Orchestrator (编排器)
+- **协调**：从 `TaskCompleted` 事件中收集 `new_commit_hash` 和 `artifact_paths`。
+- **状态追踪**：更新内存中的 DAG 状态。
+- **完成处理**：
+    - 当所有任务结束后，生成 **Workflow Snapshot**。
+    - 调用 `persistence-service` 将 Snapshot 保存至 `workflow_history`。
+    - 发送 `WorkflowCompleted` 事件。
+
+#### 3. Data Persistence Service (持久化服务)
+- **新接口**：`GET /api/v1/history`
+    - 返回 `workflow_history` 列表（摘要信息）。
+- **新接口**：`GET /api/v1/history/{request_id}`
+    - 返回完整的 Snapshot（详情信息）。
+- **旧接口处理**：废弃 `GET /api/v1/analysis-results` 或将其重定向为查询 `workflow_history`。
+
+#### 4. Frontend (前端)
+- **历史页**：调用 `/api/v1/history`。每个 `request_id` 只展示一行。
+- **报告页**：
+    - 获取特定的历史详情。
+    - 使用 `artifact_paths` + `commit_hash` 通过 VGCS API (或代理)以此获取文件内容。
+
+## 4. 实施计划
+
+1.  **Schema 定义**：定义 `WorkflowSnapshot` 结构体及 SQL 迁移脚本 (`workflow_history`)。
+2.  **Orchestrator 改造**：
+    - 修改 `handle_task_completed` 以聚合 `artifact_paths`。
+    - 实现 `finalize_workflow` 逻辑，用于构建并保存 Snapshot。
+3.  **Worker 改造**：
+    - 确保 `report-generator` 在 `TaskResult` 中返回结构化的 `artifact_paths`。
+    - 移除 `report-generator` 中对 `create_analysis_result` 的数据库调用。
+4.  **Persistence Service 改造**：
+    - 实现 `workflow_history` 的 CRUD 操作。
+5.  **Frontend 改造**：
+    - 更新 API 调用以适配新的历史记录接口。
+
+## 5. 核心收益
+- **单一事实来源**：文件存 Git，元数据存 DB，杜绝数据不同步。
+- **历史记录原子性**：一次运行 = 一条记录。
+- **可追溯性**：每个产物都精确关联到一个 Git Commit。
+
diff --git a/docs/3_project_management/tasks/pending/20251126_design_0_overview.md b/docs/3_project_management/tasks/completed/20251126_design_0_overview.md
similarity index 100%
rename from docs/3_project_management/tasks/pending/20251126_design_0_overview.md
rename to docs/3_project_management/tasks/completed/20251126_design_0_overview.md
diff --git a/docs/3_project_management/tasks/pending/20251126_design_1_vgcs.md b/docs/3_project_management/tasks/completed/20251126_design_1_vgcs.md
similarity index 100%
rename from docs/3_project_management/tasks/pending/20251126_design_1_vgcs.md
rename to docs/3_project_management/tasks/completed/20251126_design_1_vgcs.md
diff --git a/docs/3_project_management/tasks/pending/20251126_design_2_doc_os.md b/docs/3_project_management/tasks/completed/20251126_design_2_doc_os.md
similarity index 100%
rename from docs/3_project_management/tasks/pending/20251126_design_2_doc_os.md
rename to docs/3_project_management/tasks/completed/20251126_design_2_doc_os.md
diff --git a/docs/3_project_management/tasks/pending/20251126_design_3_worker_runtime.md b/docs/3_project_management/tasks/completed/20251126_design_3_worker_runtime.md
similarity index 100%
rename from docs/3_project_management/tasks/pending/20251126_design_3_worker_runtime.md
rename to docs/3_project_management/tasks/completed/20251126_design_3_worker_runtime.md
diff --git a/docs/3_project_management/tasks/pending/20251126_design_4_orchestrator.md b/docs/3_project_management/tasks/completed/20251126_design_4_orchestrator.md
similarity index 100%
rename from docs/3_project_management/tasks/pending/20251126_design_4_orchestrator.md
rename to docs/3_project_management/tasks/completed/20251126_design_4_orchestrator.md
diff --git a/docs/3_project_management/tasks/pending/20251128_design_deep_research.md b/docs/3_project_management/tasks/pending/20251128_design_deep_research.md
new file mode 100644
index 0000000..058a0b3
--- /dev/null
+++ b/docs/3_project_management/tasks/pending/20251128_design_deep_research.md
@@ -0,0 +1,171 @@
+# 设计方案: Deep Research Service (Reactive & Git-Native)
+
+## 1. 定位与核心理念 (Overview)
+
+**Deep Research** 是一个独立的、正交的数据降维与提炼服务。它的核心任务解决 "Context Overflow" 问题——当业务数据量超过大模型上下文窗口，或数据复杂度超过单次 Prompt 处理能力时，通过**自主智能体 (Autonomous Agent)** 进行迭代式的分析、摘要和结构化提取。
+
+### 1.1 核心原则
+1.  **独立性 (Independence)**: 作为一个独立的微服务 (`deep-research-service`) 运行，拥有独立的资源配额和生命周期。
+2.  **Git 原生 (Git-Native)**: 利用底层的 VGCS (Virtual Git Context System) 的分支 (Branching) 和合并 (Merging) 机制，实现原始数据与研究成果的**并存**。
+3.  **响应式闭环 (Reactive Loop)**: 摒弃线性的 Map-Reduce，采用 "Plan -> Act -> Critic" 的动态循环，根据当前发现的信息实时调整研究目标。
+4.  **安全护栏 (Guardrails)**: 引入熵减检查、语义收敛检测和硬性预算约束，防止智能体陷入死循环或发散。
+
+---
+
+## 2. 系统架构 (Architecture)
+
+### 2.1 交互流程图
+
+```mermaid
+graph TD
+    subgraph "Orchestration Layer"
+        Orch[Orchestrator Service]
+        DAG[DAG Scheduler]
+    end
+
+    subgraph "Storage Layer (VGCS)"
+        Repo[Git Repo]
+        MainBr[Branch: main]
+        DRBr[Branch: feat/deep_research]
+    end
+
+    subgraph "Deep Research Layer"
+        Monitor[Resource Monitor]
+        Reactor[Reactive Engine]
+        Guard[Safety Guardrails]
+    end
+
+    %% Flow
+    Orch -->|1. Task Pending (Check Size)| Monitor
+    Monitor -->|2. Threshold Exceeded| Orch
+    Orch -->|3. Suspend Task & Create Branch| Repo
+    Repo -.-> MainBr
+    MainBr -.-> DRBr
+    
+    Orch -->|4. Dispatch Job| Reactor
+    Reactor <-->|5. Read/Write| DRBr
+    Reactor <-->|6. Validate Step| Guard
+    
+    Reactor -->|7. Completion| Orch
+    Orch -->|8. Merge/Rebase| Repo
+    DRBr -->|Merge| MainBr
+    Orch -->|9. Resume Task| DAG
+```
+
+### 2.2 分支策略 (Branching Strategy)
+
+我们采用 **"并存 (Co-exist)"** 策略，而非简单的替换。
+
+*   **Main Branch**: 包含原始海量数据 (e.g., 100份 PDF, 10万行 CSV)。
+*   **Research Branch**: 从 Main 分出。Deep Research Agent 在此分支上工作，生成新的提炼文件 (e.g., `research_summary.md`, `knowledge_graph.json`)。
+*   **Merge**: 任务完成后，Research Branch 被 merge 回 Main。
+    *   **下游任务视角**: 下游任务可以看到原始数据（如果在 `input` 中显式请求），但默认通过 Context Selector 优先获取 `research_summary.md`。
+    *   **User Option**: 用户可以选择 "Re-run from Deep Research"，即基于 merge 后的 commit 继续执行；也可以选择 "Raw Run"，强制使用原始数据（虽然可能失败）。
+
+---
+
+## 3. 核心逻辑: The Reactive Engine
+
+Deep Research 不仅仅是摘要，而是一个**有状态的探索过程**。
+
+### 3.1 状态循环 (The Loop)
+
+Agent 维护一个动态的 `State`：
+*   `Goal Stack`: 当前的研究目标栈（初始由 Prompt 决定，后续动态分裂）。
+*   `Knowledge Base`: 已获取的确信事实。
+*   `Trace Log`: 思考路径。
+
+**执行步骤**:
+1.  **Observe**: 读取当前分支的数据（或上一轮的输出）。
+2.  **Plan**: 基于当前 Goal 和 Observe 的结果，制定下一步行动（e.g., "搜索关键词 X", "读取文件 Y 的第 10-20 页", "对文件 Z 进行摘要"）。
+3.  **Act**: 执行行动，写入中间结果到 Git。
+4.  **Reflect (Critic)**: 检查结果是否满足 Goal？是否发现了新线索需要更新 Goal？
+
+### 3.2 保驾护航机制 (Guardrails)
+
+为了防止 Agent "幻觉"、"死循环" 或 "跑题"，必须实施严格的监控。
+
+#### A. 熵减检查 (Entropy/Novelty Check)
+*   **目的**: 防止 Agent 反复咀嚼相同的信息。
+*   **机制**: 计算新生成的 Research Note 与已有 Knowledge Base 的 **Embedding 相似度**。
+*   **策略**: 如果 `Similarity > 0.95`，判定为无效迭代，强制终止当前子路径或回退。
+
+#### B. 语义距离收敛 (Semantic Convergence)
+*   **目的**: 防止 Agent 跑题（Divergence）。
+*   **机制**: 实时计算 `Current Research Content` 向量与 `Initial User Query` 向量的距离。
+*   **策略**: 距离应随迭代呈**震荡下降**趋势。如果距离显著增大（e.g., 从研究 "Apple 财务" 跑题到 "越南美食"），Supervisor 介入干预。
+
+#### C. 预算硬约束 (Hard Budgeting)
+*   **Token Cap**: 单次 Research 任务上限（e.g., 200k tokens）。
+*   **Step Cap**: 最大迭代轮数（e.g., 10 loops）。
+*   **Time Cap**: 超时强制终止。
+
+---
+
+## 4. 触发与配置 (Triggering & Config)
+
+### 4.1 自动触发 (Auto-Trigger)
+*   **Pre-flight Check**: Orchestrator 在调度 Analysis Task 前，先调用 `ContextResolver` 获取输入文件的 Metadata。
+*   **Threshold Logic**:
+    ```rust
+    let total_tokens = estimate_tokens(file_list);
+    let model_limit = llm_config.context_window; // e.g. 128k
+    
+    if total_tokens > (model_limit * 0.8) {
+        trigger_deep_research();
+    }
+    ```
+
+### 4.2 配置驱动 (Config-Driven)
+允许在 `AnalysisTemplate` 中显式控制：
+
+```json
+{
+  "modules": {
+    "financial_analysis": {
+      "deep_research": {
+        "strategy": "auto", // auto | always | never
+        "threshold_tokens": 50000,
+        "focus_areas": ["risk", "cash_flow"] // Initial Goals
+      }
+    }
+  }
+}
+```
+
+### 4.3 基础设施配置更新
+
+需要在 `LlmProvidersConfig` 中补充模型能力参数，以便系统知道 "上限" 是多少。
+
+```rust
+pub struct ModelConfig {
+    pub model_id: String,
+    pub context_window: u32, // e.g., 128000
+    pub pricing_tier: String, // e.g., "high"
+    // ...
+}
+```
+
+---
+
+## 5. 实施路线图 (Roadmap)
+
+1.  **Phase 1: Infrastructure**
+    *   在 `common-contracts` 定义 Deep Research 的 Task 结构和配置。
+    *   更新 `LlmProvidersConfig` 支持 context window 参数。
+    *   在 `Orchestrator` 实现 "Suspend & Branch" 逻辑。
+
+2.  **Phase 2: The Service (MVP)**
+    *   构建 `deep-research-service` (Rust)。
+    *   实现基础的 **Map-Reduce** 逻辑作为 v0.1（先跑通流程）。
+    *   集成 VGCS 分支操作。
+
+3.  **Phase 3: The Reactive Agent**
+    *   引入向量数据库（或内存向量索引）用于 Guardrails。
+    *   实现 Plan-Act-Critic 循环。
+    *   实现熵减和收敛检查。
+
+4.  **Phase 4: Integration**
+    *   全自动触发测试。
+    *   前端可视化：展示 Research 过程的 Trace 和中间产物。
+
diff --git a/docs/3_project_management/tasks/pending/20251128_dry_run_report.md b/docs/3_project_management/tasks/pending/20251128_dry_run_report.md
new file mode 100644
index 0000000..1f50f97
--- /dev/null
+++ b/docs/3_project_management/tasks/pending/20251128_dry_run_report.md
@@ -0,0 +1,70 @@
+# 历史报告功能实施前 Dry Run 报告
+
+## 概览
+本报告对“历史报告”功能的实施方案进行了全面的“Dry Run”检查。我们检查了后端服务 (`data-persistence-service`, `api-gateway`, `report-generator-service`) 和前端代码 (`schema.gen.ts`, UI 组件)，确认了所有必要的变更点和潜在的遗漏。
+
+## 检查清单与发现 (Dry Run Findings)
+
+### 1. 后端: Report Generator Service (Fix Missing Persistence)
+*   **现状**: `run_vgcs_based_generation` 函数在生成报告后，仅提交到了 VGCS (Git)，没有调用 `persistence_client` 写入数据库。
+*   **影响**: 数据库中没有记录，导致历史查询接口返回空列表。
+*   **修正动作**:
+    *   在 `worker.rs` 的 `run_vgcs_based_generation` 函数末尾（生成 commit 后），构建 `NewAnalysisResult` 结构体。
+    *   调用 `persistence_client.create_analysis_result`。
+    *   注意：`NewAnalysisResult` 需要 `module_id` 和 `template_id`，目前这些信息在 `command` 中是可选的 (`Option`)。在 `message_consumer.rs` 中解析 `WorkflowTaskCommand` 时，我们已经提取了这些信息并放入了 `GenerateReportCommand`。需要确保传递链路完整。
+
+### 2. 后端: Data Persistence Service (Query Update)
+*   **现状**:
+    *   `AnalysisQuery` 结构体强制要求 `symbol: String`。
+    *   DB 查询 `get_analysis_results` 强制 `WHERE symbol = $1`。
+*   **修正动作**:
+    *   修改 `AnalysisQuery`，将 `symbol` 改为 `Option<String>`。
+    *   修改 `get_analysis_results` SQL，使其根据 symbol 是否存在动态构建 `WHERE` 子句（或者使用 `COALESCE` 技巧，但动态构建更清晰）。
+    *   在 SQL 中强制加上 `LIMIT 10`（或者通过参数控制，为了简化本次只做最近10条，建议硬编码默认值或加 `limit` 参数）。
+
+### 3. 后端: API Gateway (Endpoint Update)
+*   **现状**:
+    *   `AnalysisResultQuery` 结构体定义了 `symbol: String`。
+    *   `get_analysis_results_by_symbol` 处理器绑定了该 Query。
+    *   没有 `GET /api/v1/analysis-results/:id` 接口。
+*   **修正动作**:
+    *   修改 `AnalysisResultQuery` 为 `symbol: Option<String>`。
+    *   更新 `get_analysis_results` 处理器以适应可选参数。
+    *   新增 `get_analysis_result_by_id` 处理器，代理请求到 persistence service。
+    *   **关键遗漏检查**: 确保 `utoipa` 的宏定义 (`#[utoipa::path(...)]`) 也同步更新，否则生成的 OpenAPI 文档不对，前端 schema 就不会更新。
+
+### 4. 前端: Schema与API客户端
+*   **现状**: `schema.gen.ts` 是自动生成的。
+*   **动作**:
+    *   后端修改完并启动后，运行脚本 `scripts/update_api_spec.sh` (或类似机制) 重新生成 `openapi.json`。
+    *   前端运行 `npm run openapi-ts` 更新 `schema.gen.ts`。
+    *   **确认**: `get_analysis_results` 的参数应变为可选，且新增 `get_analysis_result_by_id` 方法。
+
+### 5. 前端: UI 组件
+*   **Dashboard / Header**:
+    *   需要新增 `RecentReportsDropdown` 组件。
+    *   逻辑：Mount 时调用 `api.get_analysis_results()` (无参)，获取列表。
+    *   渲染：下拉列表，点击项使用 `Link` 跳转。
+*   **HistoricalReportPage**:
+    *   新增路由 `/history/:id` 在 `App.tsx`。
+    *   组件逻辑：获取 `id` 参数 -> 调用 `api.get_analysis_result_by_id({ id })` -> 渲染 Markdown。
+    *   **复用**: 可以复用 `TaskDetailView` 中的 Markdown 渲染逻辑（样式一致性）。
+
+## 风险评估与应对
+*   **数据不一致**: 如果 Worker 写入 Git 成功但写入 DB 失败怎么办？
+    *   *应对*: 记录 Error 日志。本次暂不引入复杂的分布式事务。DB 缺失仅导致历史列表少一条，不影响核心业务（报告已生成且在 Git 中）。
+*   **Schema 类型不匹配**: 手动修改后端 struct 后，前端生成的 TS 类型可能报错。
+    *   *应对*: 严格按照 `common-contracts` 定义 DTO，确保 `utoipa` 宏准确描述 `Option` 类型。
+
+## 执行结论
+计划可行。已识别关键遗漏（Worker 持久化缺失）。
+
+**执行顺序**:
+1.  **Fix Worker Persistence** (最关键，确保新数据能进去)
+2.  **Update Persistence Service** (支持无 symbol 查询)
+3.  **Update API Gateway** (暴露接口)
+4.  **Update OpenAPI & Frontend Client**
+5.  **Implement Frontend UI**
+
+准备开始执行。
+
diff --git a/docs/3_project_management/tasks/pending/20251128_unified_architecture_design.md b/docs/3_project_management/tasks/pending/20251128_unified_architecture_design.md
new file mode 100644
index 0000000..2ab542d
--- /dev/null
+++ b/docs/3_project_management/tasks/pending/20251128_unified_architecture_design.md
@@ -0,0 +1,137 @@
+# 全栈一致性与历史回放增强设计 (Unified Architecture Design)
+
+## 1. 背景与目标
+
+当前系统存在三个主要割裂点：
+1.  **节点行为不一致**: Analysis 节点输出报告，而部分 Data Provider (YFinance/Mock) 仅抓取数据无可视化输出（虽已部分修复，但缺乏强制规范）。
+2.  **实时与历史割裂**: 实时页面依赖 SSE 推送，历史页面缺乏状态恢复机制，导致无法查看 DAG 结构和执行日志。
+3.  **日志展示分散**: 实时日志是全局流，难以对应到具体任务；历史日志未与 UI 深度集成。
+
+**本设计旨在将上述问题合并为一个系统性工程，实现以下目标：**
+*   **后端标准化**: 所有节点必须通过统一 Trait 实现，强制产出 Markdown 报告和流式更新。
+*   **前端统一化**: 使用同一套 `ReportPage` 逻辑处理“实时监控”和“历史回放”。
+*   **上下文完整性**: 无论是实时还是历史，都能查看 DAG 状态、节点报告、以及执行日志 (`_execution.md`)。
+
+---
+
+## 2. 后端架构升级 (Backend Architecture)
+
+### 2.1. 统一节点运行时 (`WorkflowNode` Trait)
+
+引入强制性接口，确保所有 Worker 行为一致。
+
+*   **Trait 定义**:
+    ```rust
+    #[async_trait]
+    pub trait WorkflowNode {
+        async fn execute(&self, ctx: &NodeContext, config: &Value) -> Result<NodeExecutionResult>;
+        fn render_report(&self, result: &NodeExecutionResult) -> Result<String>;
+    }
+    ```
+*   **`WorkflowNodeRunner` (Harness)**:
+    *   **职责**: 负责 NATS 订阅、VGCS 读写、Git Commit、错误处理。
+    *   **增强**: 
+        *   自动将 `execute` 产生的日志写入 `_execution.md`。
+        *   自动推送 `TaskStreamUpdate` (包含 Report Markdown)。
+        *   自动推送 `TaskLog` (带 `task_id` 的结构化日志，用于前端分流)。
+
+### 2.2. 工作流快照持久化 (Snapshot Persistence)
+
+为了支持历史回放，Orchestrator 必须在工作流结束时保存“案发现场”。
+
+*   **触发时机**: `handle_task_completed` 检测到 Workflow 结束 (Completed/Failed)。
+*   **保存内容**: `WorkflowStateSnapshot` (DAG 结构、每个 Task 的最终 Status、Output Commit Hash)。
+*   **存储位置**: `data-persistence-service` -> `session_data` 表。
+    *   `data_type`: "workflow_snapshot"
+    *   `request_id`: workflow_id
+*   **API**: `GET /api/v1/workflow/snapshot/{request_id}` (API Gateway 转发)。
+
+---
+
+## 3. 前端架构升级 (Frontend Architecture)
+
+### 3.1. 统一状态管理 (`useWorkflowStore`)
+
+改造 Store 以支持“双模式”加载。
+
+*   **State**: 增加 `mode: 'realtime' | 'historical'`。
+*   **Action `initialize(id)`**:
+    1.  重置 Store。
+    2.  **尝试 SSE 连接** (`/api/v1/workflow/events/{id}`)。
+        *   如果连接成功且收到 `WorkflowStarted` / `TaskStateChanged`，进入 **Realtime Mode**。
+    3.  **并行/Fallback 调用 Snapshot API** (`/api/v1/workflow/snapshot/{id}`)。
+        *   如果 SSE 连接失败（404/Closed，说明任务已结束），或者 Snapshot 返回了数据：
+        *   调用 `loadFromSnapshot(snapshot)` 填充 DAG 和 Task 状态。
+        *   进入 **Historical Mode**。
+
+### 3.2. 统一页面逻辑 (`ReportPage.tsx`)
+
+不再区分 `HistoricalReportPage`，统一使用 `ReportPage`。
+
+*   **DAG 可视化**: 复用 `WorkflowVisualizer`，数据源由 Store 提供（无论是 SSE 来的还是 Snapshot 来的）。
+*   **状态指示**:
+    *   实时模式：显示 Spinner 和实时进度。
+    *   历史模式：显示最终结果 Badge，并提示“Viewing History”。
+
+### 3.3. 沉浸式报告与调试面板 (Immersive Report & Debugging Panel)
+
+为了提升用户体验，我们将摒弃原本“三等分标签页”的设计，采用 **"主视图 + 侧边栏"** 的布局策略，实现“隐形调试”。
+
+*   **主视图 (Main View - The Report)**:
+    *   **定位**: 面向最终用户，强调阅读体验。
+    *   **布局**: 占据屏幕中央核心区域，无干扰展示 Markdown 渲染结果。
+    *   **状态栏**: 顶部仅保留最关键信息（任务状态 Badge、耗时）。
+*   **调试面板 (Debug Panel - The Inspector)**:
+    *   **定位**: 面向开发者和排查问题，默认隐藏。
+    *   **入口**: 顶部导航栏右侧的 "Terminal/Code" 图标按钮。
+    *   **交互**: 点击从屏幕右侧滑出 (Sheet/Drawer)，支持拖拽调整宽度。
+    *   **内容结构**: 面板内采用 Tabs 组织调试信息：
+        1.  **Logs**: 聚合实时流日志与 `_execution.md` 回放。
+        2.  **Context**: 文件系统快照 (Context Explorer)，展示 Input/Output 文件及 Diff。
+        3.  **Raw**: 任务原始配置 (Config) 与元数据 (Metadata)。
+
+这样的设计实现了“一步到位”：普通用户完全感知不到调试页面的存在，而开发者只需一次点击即可获得所有深层上下文。
+
+### 3.4. 历史记录入口 (`RecentReports`)
+
+*   **组件**: `RecentReportsDropdown` (Header 区域)。
+*   **逻辑**: 调用 `GET /api/v1/analysis-results?limit=10`。
+*   **跳转**: 点击跳转到 `/report/{id}` (复用统一页面)。
+
+---
+
+## 4. 实施计划 (Implementation Plan)
+
+### Phase 1: 后端 - 统一运行时 (Backend Standardization)
+1.  在 `common-contracts` 实现 `WorkflowNode` Trait 和 `WorkflowNodeRunner`。
+2.  重构 `yfinance`, `tushare`, `mock` Provider 使用新架构。
+    *   确保它们都生成 `report.md` 和 `_execution.md`。
+3.  验证实时流推送是否包含正确的 `task_id` 日志。
+
+### Phase 2: 后端 - 快照持久化 (Snapshot Persistence)
+1.  `workflow-orchestrator`: 结束时保存 `WorkflowStateSnapshot` 到 Session Data。
+2.  `api-gateway`: 暴露 Snapshot 查询接口。
+3.  `data-persistence`: 优化 `get_analysis_results` 支持全局最近 10 条查询。
+
+### Phase 3: 前端 - 统一页面与日志 (Frontend Unification)
+1.  改造 `useWorkflowStore` 支持 Snapshot Hydration。
+2.  改造 `ReportPage` 实现 SSE + Snapshot 双重加载策略。
+3.  改造 `TaskDetailView` 为“沉浸式”布局：
+    *   默认仅展示 Markdown Viewer。
+    *   添加 Right Sheet 组件承载 Logs/Context。
+4.  实现 `RecentReportsDropdown`。
+
+### Phase 4: 清理与验证
+1.  删除旧的 `HistoricalReportPage` 路由和组件。
+2.  验证全流程：
+    *   **实时**: 启动新任务 -> 看到 DAG 生长 -> 看到节点实时 Log -> 看到 Report 生成。
+    *   **历史**: 点击下拉框 -> 加载旧任务 -> 看到完整 DAG -> 点击节点看到 Report -> 打开 Inspector 看到 Logs。
+
+---
+
+## 5. 废弃文档
+
+本设计取代以下文档：
+- `docs/3_project_management/tasks/pending/20251128_backend_unified_worker_trait.md`
+- `tasks/pending/20251128_historical_playback_design.md`
+- `docs/3_project_management/tasks/pending/20251128_historical_reports_design.md`
diff --git a/docs/tasks/pending/20251129_refactor_remove_analysis_results.md b/docs/tasks/pending/20251129_refactor_remove_analysis_results.md
new file mode 100644
index 0000000..185acfb
--- /dev/null
+++ b/docs/tasks/pending/20251129_refactor_remove_analysis_results.md
@@ -0,0 +1,83 @@
+# 任务：重构历史记录与上下文管理（破坏性拆除与重建）
+
+## 1. 目标
+彻底移除旧的 `analysis_results` 表及其相关基础设施，建立基于 `workflow_history` + `VGCS` 的新一代历史记录与上下文管理系统。
+
+## 2. 执行策略
+**破坏性拆除 (Destructive Refactoring)**：直接删除数据库表定义，依靠编译器报错和搜索工具定位并清除所有相关代码，确保不留死代码。
+
+## 3. 详细步骤
+
+### 阶段一：破坏性拆除 (Demolition)
+
+1.  **数据库层**
+    *   删除 `analysis_results` 表的 SQL 定义 (Migration)。
+    *   创建新的 Migration：`DROP TABLE analysis_results;`。
+    *   删除 `AnalysisResult` 相关的 Model 定义 (`services/data-persistence-service/src/models.rs`, `common-contracts`).
+
+2.  **持久化服务层 (Data Persistence Service)**
+    *   删除 `src/api/analysis.rs` (API Handler)。
+    *   删除 `src/db/analysis_results.rs` (DB Access)。
+    *   清理 `src/api/mod.rs` 路由注册。
+
+3.  **公共契约层 (Common Contracts)**
+    *   删除 `AnalysisResultDto`, `NewAnalysisResult` 等 DTO。
+    *   删除 `PersistenceClient` 中的 `create_analysis_result`, `get_analysis_results` 方法。
+
+4.  **生产者层 (Report Generator Service)**
+    *   移除 `worker.rs` 中调用 `create_analysis_result` 的代码。
+    *   **保留**：文件写入 VGCS 的逻辑（这是我们新方案的基础）。
+
+5.  **网关与前端层 (API Gateway & Frontend)**
+    *   移除 API Gateway 中 `/analysis-results` 的转发。
+    *   前端相关调用代码暂时注释或标记为 TODO (待对接新接口)。
+
+### 阶段二：基础设施重建 (Reconstruction)
+
+1.  **数据库层**
+    *   新建 `workflow_history` 表。
+    *   Schema 定义：
+        ```sql
+        CREATE TABLE workflow_history (
+            request_id UUID PRIMARY KEY,
+            symbol VARCHAR(20) NOT NULL,
+            market VARCHAR(10) NOT NULL,
+            template_id VARCHAR(50),
+            status VARCHAR(20) NOT NULL,
+            start_time TIMESTAMPTZ NOT NULL,
+            end_time TIMESTAMPTZ,
+            snapshot_data JSONB NOT NULL -- 包含 DAG 结构、Commit Hash、Artifact Paths
+        );
+        ```
+
+2.  **公共契约层 (Common Contracts)**
+    *   定义 `WorkflowHistoryDto` 和 `WorkflowSnapshot` 结构。
+    *   更新 `PersistenceClient`，增加 `create_workflow_history` 和 `get_workflow_history` 方法。
+
+3.  **持久化服务层 (Data Persistence Service)**
+    *   实现 `src/api/history.rs` 和 `src/db/history.rs`。
+    *   支持按 `request_id` 查询详情，按 `symbol`/`template_id` 查询列表。
+
+### 阶段三：编排与集成 (Orchestration & Integration)
+
+1.  **Orchestrator Service**
+    *   **收集逻辑**：修改 `handle_task_completed`，从 Task Result 中收集 `artifact_paths` 和 `commit_hash`。
+    *   **结束逻辑**：实现 `finalize_workflow`。
+        *   当工作流结束时，构建 `WorkflowSnapshot`。
+        *   调用 `persistence-service` 写入 `workflow_history`。
+
+2.  **Frontend**
+    *   重写 `useHistory` Hook，对接 `/api/v1/history`。
+    *   重写 `ReportPage`，使用 Snapshot 中的 Commit Hash + Path 通过 VGCS API 获取报告内容。
+
+## 4. 验证标准
+1.  **编译通过**：所有服务无 `analysis_results` 相关报错。
+2.  **数据纯净**：数据库中无 `analysis_results` 表，只有 `workflow_history`。
+3.  **功能正常**：
+    *   运行一个 Workflow，能在“历史记录”页看到**一条**记录。
+    *   点击进入详情，能正确加载各步骤的报告文件（从 VGCS）。
+
+## 5. 注意事项
+*   这是一个 Breaking Change，执行期间历史数据会不可见（直到前端适配新接口）。
+*   VGCS 的读取接口 (`read_file`) 需要确保可用性，供前端/网关调用。
+
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index a9816b2..b5b9080 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -10,6 +10,8 @@
       "dependencies": {
         "@radix-ui/react-checkbox": "^1.3.3",
         "@radix-ui/react-dialog": "^1.1.15",
+        "@radix-ui/react-dropdown-menu": "^2.1.16",
+        "@radix-ui/react-icons": "^1.3.2",
         "@radix-ui/react-navigation-menu": "^1.2.14",
         "@radix-ui/react-popover": "^1.1.15",
         "@radix-ui/react-progress": "^1.1.8",
@@ -23,6 +25,7 @@
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
         "cmdk": "^1.1.1",
+        "date-fns": "^4.1.0",
         "elkjs": "^0.11.0",
         "lucide-react": "^0.554.0",
         "react": "^19.2.0",
@@ -1477,6 +1480,35 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-dropdown-menu": {
+      "version": "2.1.16",
+      "resolved": "http://npm.repo.lan/@radix-ui/react-dropdown-menu/-/react-dropdown-menu-2.1.16.tgz",
+      "integrity": "sha512-1PLGQEynI/3OX/ftV54COn+3Sud/Mn8vALg2rWnBLnRaGtJDduNW/22XjlGgPdpcIbiQxjKtb7BkcjP00nqfJw==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/primitive": "1.1.3",
+        "@radix-ui/react-compose-refs": "1.1.2",
+        "@radix-ui/react-context": "1.1.2",
+        "@radix-ui/react-id": "1.1.1",
+        "@radix-ui/react-menu": "2.1.16",
+        "@radix-ui/react-primitive": "2.1.3",
+        "@radix-ui/react-use-controllable-state": "1.2.2"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@radix-ui/react-focus-guards": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-focus-guards/-/react-focus-guards-1.1.3.tgz",
@@ -1517,6 +1549,15 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-icons": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-icons/-/react-icons-1.3.2.tgz",
+      "integrity": "sha512-fyQIhGDhzfc9pK2kH6Pl9c4BDJGfMkPqkyIgYDthyNYoNg3wVhoJMMh19WS4Up/1KMPFVpNsT2q3WmXn2N1m6g==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react": "^16.x || ^17.x || ^18.x || ^19.0.0 || ^19.0.0-rc"
+      }
+    },
     "node_modules/@radix-ui/react-id": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-id/-/react-id-1.1.1.tgz",
@@ -1535,6 +1576,64 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-menu": {
+      "version": "2.1.16",
+      "resolved": "http://npm.repo.lan/@radix-ui/react-menu/-/react-menu-2.1.16.tgz",
+      "integrity": "sha512-72F2T+PLlphrqLcAotYPp0uJMr5SjP5SL01wfEspJbru5Zs5vQaSHb4VB3ZMJPimgHHCHG7gMOeOB9H3Hdmtxg==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/primitive": "1.1.3",
+        "@radix-ui/react-collection": "1.1.7",
+        "@radix-ui/react-compose-refs": "1.1.2",
+        "@radix-ui/react-context": "1.1.2",
+        "@radix-ui/react-direction": "1.1.1",
+        "@radix-ui/react-dismissable-layer": "1.1.11",
+        "@radix-ui/react-focus-guards": "1.1.3",
+        "@radix-ui/react-focus-scope": "1.1.7",
+        "@radix-ui/react-id": "1.1.1",
+        "@radix-ui/react-popper": "1.2.8",
+        "@radix-ui/react-portal": "1.1.9",
+        "@radix-ui/react-presence": "1.1.5",
+        "@radix-ui/react-primitive": "2.1.3",
+        "@radix-ui/react-roving-focus": "1.1.11",
+        "@radix-ui/react-slot": "1.2.3",
+        "@radix-ui/react-use-callback-ref": "1.1.1",
+        "aria-hidden": "^1.2.4",
+        "react-remove-scroll": "^2.6.3"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-menu/node_modules/@radix-ui/react-slot": {
+      "version": "1.2.3",
+      "resolved": "http://npm.repo.lan/@radix-ui/react-slot/-/react-slot-1.2.3.tgz",
+      "integrity": "sha512-aeNmHnBxbi2St0au6VBVC7JXFlhLlOnvIIlePNniyUNAClzmtAUEY8/pBiK3iHjufOlwA+c20/8jngo7xcrg8A==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/react-compose-refs": "1.1.2"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@radix-ui/react-navigation-menu": {
       "version": "1.2.14",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-navigation-menu/-/react-navigation-menu-1.2.14.tgz",
@@ -4423,6 +4522,16 @@
         "node": ">=12"
       }
     },
+    "node_modules/date-fns": {
+      "version": "4.1.0",
+      "resolved": "http://npm.repo.lan/date-fns/-/date-fns-4.1.0.tgz",
+      "integrity": "sha512-Ukq0owbQXxa/U3EGtsdVBkR1w7KOQ5gIBqdH2hkvknzZPYvBxb/aa6E8L7tmjFtkwZBu3UXBbjIgPo/Ez4xaNg==",
+      "license": "MIT",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/kossnocorp"
+      }
+    },
     "node_modules/debug": {
       "version": "4.4.3",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
diff --git a/frontend/package.json b/frontend/package.json
index 4edaba1..69ea00c 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -13,6 +13,8 @@
   "dependencies": {
     "@radix-ui/react-checkbox": "^1.3.3",
     "@radix-ui/react-dialog": "^1.1.15",
+    "@radix-ui/react-dropdown-menu": "^2.1.16",
+    "@radix-ui/react-icons": "^1.3.2",
     "@radix-ui/react-navigation-menu": "^1.2.14",
     "@radix-ui/react-popover": "^1.1.15",
     "@radix-ui/react-progress": "^1.1.8",
@@ -26,6 +28,7 @@
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "cmdk": "^1.1.1",
+    "date-fns": "^4.1.0",
     "elkjs": "^0.11.0",
     "lucide-react": "^0.554.0",
     "react": "^19.2.0",
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index 01b106e..7f75ae7 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -6,6 +6,7 @@ import { ConfigPage } from '@/pages/config/ConfigPage';
 import { Dashboard } from '@/pages/Dashboard';
 
 import { ReportPage } from '@/pages/ReportPage';
+import { HistoricalReportPage } from '@/pages/HistoricalReportPage';
 
 import { DocsPage } from '@/pages/DocsPage';
 
@@ -16,6 +17,7 @@ function App() {
         <Route element={<RootLayout />}>
           <Route path="/" element={<Dashboard />} />
           <Route path="/report/:id" element={<ReportPage />} />
+          <Route path="/history/:id" element={<HistoricalReportPage />} />
           <Route path="/config/*" element={<ConfigPage />} />
           <Route path="/docs" element={<DocsPage />} />
         </Route>
diff --git a/frontend/src/api/schema.gen.ts b/frontend/src/api/schema.gen.ts
index 34557ec..b6d080a 100644
--- a/frontend/src/api/schema.gen.ts
+++ b/frontend/src/api/schema.gen.ts
@@ -33,6 +33,17 @@ export type LlmConfig = Partial<{
   model_id: string | null;
   temperature: number | null;
 }>;
+export type AnalysisResultDto = {
+  content: string;
+  created_at: string;
+  id: string;
+  meta_data: Value;
+  module_id: string;
+  request_id: string;
+  symbol: string;
+  template_id: string;
+};
+export type Value = unknown;
 export type AnalysisTemplateSet = {
   modules: {};
   name: string;
@@ -190,13 +201,29 @@ export type WorkflowEvent =
   | {
       payload: {
         task_graph: WorkflowDag;
+        tasks_metadata: {};
         tasks_output: {};
         tasks_status: {};
         timestamp: number;
       };
       type: "WorkflowStateSnapshot";
     };
+export type TaskMetadata = Partial<{
+  execution_log_path: string | null;
+  output_path: string | null;
+}>;
 
+export const Value = z.unknown();
+export const AnalysisResultDto = z.object({
+  content: z.string(),
+  created_at: z.string().datetime({ offset: true }),
+  id: z.string().uuid(),
+  meta_data: Value,
+  module_id: z.string(),
+  request_id: z.string().uuid(),
+  symbol: z.string(),
+  template_id: z.string(),
+});
 export const LlmConfig = z
   .object({
     max_tokens: z.union([z.number(), z.null()]),
@@ -364,6 +391,12 @@ export const TaskDependency = z.object({
   from: z.string(),
   to: z.string(),
 });
+export const TaskMetadata = z
+  .object({
+    execution_log_path: z.union([z.string(), z.null()]),
+    output_path: z.union([z.string(), z.null()]),
+  })
+  .partial();
 export const TaskStatus = z.enum([
   "Pending",
   "Scheduled",
@@ -463,6 +496,7 @@ export const WorkflowEvent = z.union([
       payload: z
         .object({
           task_graph: WorkflowDag,
+          tasks_metadata: z.record(TaskMetadata),
           tasks_output: z.record(z.union([z.string(), z.null()])),
           tasks_status: z.record(TaskStatus),
           timestamp: z.number().int(),
@@ -474,6 +508,8 @@ export const WorkflowEvent = z.union([
 ]);
 
 export const schemas = {
+  Value,
+  AnalysisResultDto,
   LlmConfig,
   SelectionMode,
   ContextSelectorConfig,
@@ -505,6 +541,7 @@ export const schemas = {
   HealthStatus,
   StartWorkflowCommand,
   TaskDependency,
+  TaskMetadata,
   TaskStatus,
   TaskType,
   TaskNode,
@@ -513,6 +550,41 @@ export const schemas = {
 };
 
 export const endpoints = makeApi([
+  {
+    method: "get",
+    path: "/api/v1/analysis-results",
+    alias: "get_analysis_results_by_symbol",
+    requestFormat: "json",
+    parameters: [
+      {
+        name: "symbol",
+        type: "Query",
+        schema: z.string().optional(),
+      },
+    ],
+    response: z.array(AnalysisResultDto),
+  },
+  {
+    method: "get",
+    path: "/api/v1/analysis-results/:id",
+    alias: "get_analysis_result_by_id",
+    requestFormat: "json",
+    parameters: [
+      {
+        name: "id",
+        type: "Path",
+        schema: z.string().uuid(),
+      },
+    ],
+    response: AnalysisResultDto,
+    errors: [
+      {
+        status: 404,
+        description: `Not found`,
+        schema: z.void(),
+      },
+    ],
+  },
   {
     method: "get",
     path: "/api/v1/configs/analysis_template_sets",
diff --git a/frontend/src/components/RealtimeLogs.tsx b/frontend/src/components/RealtimeLogs.tsx
deleted file mode 100644
index 7c665b5..0000000
--- a/frontend/src/components/RealtimeLogs.tsx
+++ /dev/null
@@ -1,75 +0,0 @@
-import { useState } from 'react';
-import { Terminal, ChevronUp, ChevronDown } from 'lucide-react';
-import { Card } from "@/components/ui/card";
-import { Button } from "@/components/ui/button";
-import { useAutoScroll } from '@/hooks/useAutoScroll';
-import { cn } from "@/lib/utils";
-
-interface LogEntry {
-    taskId: string;
-    log: string;
-}
-
-interface RealtimeLogsProps {
-    logs: LogEntry[];
-    className?: string;
-}
-
-export function RealtimeLogs({ logs, className }: RealtimeLogsProps) {
-    const [isExpanded, setIsExpanded] = useState(false);
-    const logsViewportRef = useAutoScroll(logs.length);
-
-    const toggleExpand = () => {
-        setIsExpanded(!isExpanded);
-    };
-
-    return (
-        <Card className={cn("flex flex-col shadow-sm transition-all duration-300 ease-in-out border-l-4 border-l-primary py-0 gap-0", className, isExpanded ? "h-[300px]" : "h-8")}>
-            <div 
-                className="flex items-center justify-between px-2 py-1 cursor-pointer hover:bg-muted/50 transition-colors h-8 shrink-0"
-                onClick={toggleExpand}
-            >
-                <div className="flex items-center gap-2 overflow-hidden flex-1">
-                    <Terminal className="h-3 w-3 text-muted-foreground shrink-0" />
-                    <span className="text-[10px] font-medium text-muted-foreground whitespace-nowrap shrink-0 mr-2">Real-time Logs</span>
-                    
-                    {/* Preview last log when collapsed */}
-                    {!isExpanded && logs.length > 0 && (
-                        <div className="flex-1 flex items-center gap-2 overflow-hidden text-[10px] font-mono text-muted-foreground/80">
-                            <span className="text-blue-500 shrink-0">[{logs[logs.length - 1].taskId}]</span>
-                            <span className="truncate">{logs[logs.length - 1].log}</span>
-                        </div>
-                    )}
-                     {!isExpanded && logs.length === 0 && (
-                        <span className="text-[10px] italic text-muted-foreground/50">Waiting for logs...</span>
-                    )}
-                </div>
-                
-                <Button variant="ghost" size="icon" className="h-4 w-4 text-muted-foreground hover:text-foreground shrink-0 ml-2">
-                    {isExpanded ? <ChevronUp className="h-3 w-3" /> : <ChevronDown className="h-3 w-3" />}
-                </Button>
-            </div>
-
-            {/* Expanded Content */}
-            <div 
-                className={cn(
-                    "flex-1 bg-muted/10 border-t transition-all duration-300 overflow-hidden",
-                    isExpanded ? "opacity-100 visible flex flex-col" : "opacity-0 invisible h-0"
-                )}
-            >
-                 <div ref={logsViewportRef} className="flex-1 min-h-0 overflow-y-auto p-3 font-mono text-[10px] leading-relaxed">
-                    <div className="space-y-1">
-                        {logs.length === 0 && <span className="text-muted-foreground italic">Waiting for logs...</span>}
-                        {logs.map((entry, i) => (
-                            <div key={i} className="break-all flex gap-2">
-                                <span className="text-blue-500 font-semibold shrink-0 opacity-80">[{entry.taskId}]</span>
-                                <span className="text-foreground/90">{entry.log}</span>
-                            </div>
-                        ))}
-                    </div>
-                </div>
-            </div>
-        </Card>
-    );
-}
-
diff --git a/frontend/src/components/RecentReportsDropdown.tsx b/frontend/src/components/RecentReportsDropdown.tsx
new file mode 100644
index 0000000..3549e38
--- /dev/null
+++ b/frontend/src/components/RecentReportsDropdown.tsx
@@ -0,0 +1,82 @@
+import { useState } from 'react';
+import { useNavigate } from 'react-router-dom';
+import { Button } from '@/components/ui/button';
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuLabel,
+  DropdownMenuSeparator,
+  DropdownMenuTrigger,
+} from '@/components/ui/dropdown-menu';
+import { History, Loader2 } from 'lucide-react';
+
+interface AnalysisResultSummary {
+    id: string;
+    request_id: string;
+    symbol: string;
+    template_id: string;
+    created_at: string;
+}
+
+export function RecentReportsDropdown() {
+    const [reports, setReports] = useState<AnalysisResultSummary[]>([]);
+    const [loading, setLoading] = useState(false);
+    const navigate = useNavigate();
+
+    const loadReports = async () => {
+        setLoading(true);
+        try {
+            // TEMPORARY: /api/v1/analysis-results removed for refactor
+            // const response = await fetch('/api/v1/analysis-results?limit=10'); 
+            // if (response.ok) {
+            //     const data = await response.json();
+            //     setReports(data);
+            // }
+            setReports([]);
+        } catch (e) {
+            console.error("Failed to load reports", e);
+        } finally {
+            setLoading(false);
+        }
+    };
+
+    return (
+        <DropdownMenu onOpenChange={(open) => { if(open) loadReports(); }}>
+            <DropdownMenuTrigger asChild>
+                <Button variant="ghost" size="sm" className="gap-2 text-muted-foreground hover:text-foreground">
+                    <History className="h-4 w-4" />
+                    <span className="hidden sm:inline">History</span>
+                </Button>
+            </DropdownMenuTrigger>
+            <DropdownMenuContent align="end" className="w-80 max-h-[400px] overflow-y-auto">
+                <DropdownMenuLabel>Recent Reports</DropdownMenuLabel>
+                <DropdownMenuSeparator />
+                {loading ? (
+                    <div className="p-4 flex justify-center">
+                        <Loader2 className="h-4 w-4 animate-spin text-muted-foreground" />
+                    </div>
+                ) : reports.length === 0 ? (
+                    <div className="p-4 text-center text-sm text-muted-foreground">No recent reports</div>
+                ) : (
+                    reports.map((report) => (
+                        <DropdownMenuItem 
+                            key={report.request_id} 
+                            onClick={() => navigate(`/report/${report.request_id}`)}
+                            className="flex flex-col items-start gap-1 cursor-pointer py-3"
+                        >
+                            <div className="font-medium flex justify-between w-full">
+                                <span>{report.symbol}</span>
+                                <span className="text-xs font-normal text-muted-foreground">{new Date(report.start_time).toLocaleDateString()}</span>
+                            </div>
+                            <div className="flex justify-between w-full text-xs text-muted-foreground">
+                                <span>{report.template_id || 'Default'}</span>
+                                <span className={report.status === 'Completed' ? 'text-green-600' : 'text-amber-600'}>{report.status}</span>
+                            </div>
+                        </DropdownMenuItem>
+                    ))
+                )}
+            </DropdownMenuContent>
+        </DropdownMenu>
+    );
+}
diff --git a/frontend/src/components/layout/Header.tsx b/frontend/src/components/layout/Header.tsx
index b851c3f..f5e981b 100644
--- a/frontend/src/components/layout/Header.tsx
+++ b/frontend/src/components/layout/Header.tsx
@@ -1,12 +1,6 @@
 import { Link, useLocation } from 'react-router-dom';
 import { cn } from '@/lib/utils';
-import {
-  NavigationMenu,
-  NavigationMenuContent,
-  NavigationMenuItem,
-  NavigationMenuList,
-  NavigationMenuTrigger,
-} from "@/components/ui/navigation-menu"
+import { RecentReportsDropdown } from '../RecentReportsDropdown';
 
 export function Header() {
   const location = useLocation();
@@ -28,21 +22,6 @@ export function Header() {
             >
               首页
             </Link>
-            <NavigationMenu>
-              <NavigationMenuList>
-                <NavigationMenuItem>
-                  <NavigationMenuTrigger className="h-auto p-0 text-sm font-medium text-foreground/60 bg-transparent hover:bg-transparent hover:text-foreground/80 data-[state=open]:bg-transparent data-[active]:bg-transparent focus:bg-transparent">
-                     历史报告
-                  </NavigationMenuTrigger>
-                  <NavigationMenuContent>
-                    <div className="grid gap-3 p-6 w-[400px]">
-                         <div className="text-sm font-medium leading-none">最近的分析</div>
-                         <p className="text-sm text-muted-foreground mt-2">暂无历史记录 (Mock)</p>
-                    </div>
-                  </NavigationMenuContent>
-                </NavigationMenuItem>
-              </NavigationMenuList>
-            </NavigationMenu>
             <Link
               to="/docs"
               className={cn(
@@ -64,7 +43,7 @@ export function Header() {
           </nav>
         </div>
         <div className="flex items-center gap-2">
-          {/* User profile or system status could go here */}
+          <RecentReportsDropdown />
         </div>
       </div>
     </header>
diff --git a/frontend/src/components/ui/dropdown-menu.tsx b/frontend/src/components/ui/dropdown-menu.tsx
new file mode 100644
index 0000000..aa4f33d
--- /dev/null
+++ b/frontend/src/components/ui/dropdown-menu.tsx
@@ -0,0 +1,198 @@
+import * as React from "react"
+import * as DropdownMenuPrimitive from "@radix-ui/react-dropdown-menu"
+import { cn } from "@/lib/utils"
+import { CheckIcon, ChevronRightIcon, DotFilledIcon } from "@radix-ui/react-icons"
+
+const DropdownMenu = DropdownMenuPrimitive.Root
+
+const DropdownMenuTrigger = DropdownMenuPrimitive.Trigger
+
+const DropdownMenuGroup = DropdownMenuPrimitive.Group
+
+const DropdownMenuPortal = DropdownMenuPrimitive.Portal
+
+const DropdownMenuSub = DropdownMenuPrimitive.Sub
+
+const DropdownMenuRadioGroup = DropdownMenuPrimitive.RadioGroup
+
+const DropdownMenuSubTrigger = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.SubTrigger>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.SubTrigger> & {
+    inset?: boolean
+  }
+>(({ className, inset, children, ...props }, ref) => (
+  <DropdownMenuPrimitive.SubTrigger
+    ref={ref}
+    className={cn(
+      "flex cursor-default select-none items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-none focus:bg-accent data-[state=open]:bg-accent [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0",
+      inset && "pl-8",
+      className
+    )}
+    {...props}
+  >
+    {children}
+    <ChevronRightIcon className="ml-auto" />
+  </DropdownMenuPrimitive.SubTrigger>
+))
+DropdownMenuSubTrigger.displayName =
+  DropdownMenuPrimitive.SubTrigger.displayName
+
+const DropdownMenuSubContent = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.SubContent>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.SubContent>
+>(({ className, ...props }, ref) => (
+  <DropdownMenuPrimitive.SubContent
+    ref={ref}
+    className={cn(
+      "z-50 min-w-[8rem] overflow-hidden rounded-md border bg-popover p-1 text-popover-foreground shadow-lg data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 origin-[--radix-dropdown-menu-content-transform-origin]",
+      className
+    )}
+    {...props}
+  />
+))
+DropdownMenuSubContent.displayName =
+  DropdownMenuPrimitive.SubContent.displayName
+
+const DropdownMenuContent = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.Content>
+>(({ className, sideOffset = 4, ...props }, ref) => (
+  <DropdownMenuPrimitive.Portal>
+    <DropdownMenuPrimitive.Content
+      ref={ref}
+      sideOffset={sideOffset}
+      className={cn(
+        "z-50 max-h-[var(--radix-dropdown-menu-content-available-height)] min-w-[8rem] overflow-y-auto overflow-x-hidden rounded-md border bg-popover p-1 text-popover-foreground shadow-md",
+        "data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 origin-[--radix-dropdown-menu-content-transform-origin]",
+        className
+      )}
+      {...props}
+    />
+  </DropdownMenuPrimitive.Portal>
+))
+DropdownMenuContent.displayName = DropdownMenuPrimitive.Content.displayName
+
+const DropdownMenuItem = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.Item>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.Item> & {
+    inset?: boolean
+  }
+>(({ className, inset, ...props }, ref) => (
+  <DropdownMenuPrimitive.Item
+    ref={ref}
+    className={cn(
+      "relative flex cursor-default select-none items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&>svg]:size-4 [&>svg]:shrink-0",
+      inset && "pl-8",
+      className
+    )}
+    {...props}
+  />
+))
+DropdownMenuItem.displayName = DropdownMenuPrimitive.Item.displayName
+
+const DropdownMenuCheckboxItem = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.CheckboxItem>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.CheckboxItem>
+>(({ className, children, checked, ...props }, ref) => (
+  <DropdownMenuPrimitive.CheckboxItem
+    ref={ref}
+    className={cn(
+      "relative flex cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
+      className
+    )}
+    checked={checked}
+    {...props}
+  >
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <DropdownMenuPrimitive.ItemIndicator>
+        <CheckIcon className="h-4 w-4" />
+      </DropdownMenuPrimitive.ItemIndicator>
+    </span>
+    {children}
+  </DropdownMenuPrimitive.CheckboxItem>
+))
+DropdownMenuCheckboxItem.displayName =
+  DropdownMenuPrimitive.CheckboxItem.displayName
+
+const DropdownMenuRadioItem = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.RadioItem>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.RadioItem>
+>(({ className, children, ...props }, ref) => (
+  <DropdownMenuPrimitive.RadioItem
+    ref={ref}
+    className={cn(
+      "relative flex cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
+      className
+    )}
+    {...props}
+  >
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <DropdownMenuPrimitive.ItemIndicator>
+        <DotFilledIcon className="h-2 w-2 fill-current" />
+      </DropdownMenuPrimitive.ItemIndicator>
+    </span>
+    {children}
+  </DropdownMenuPrimitive.RadioItem>
+))
+DropdownMenuRadioItem.displayName = DropdownMenuPrimitive.RadioItem.displayName
+
+const DropdownMenuLabel = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.Label>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.Label> & {
+    inset?: boolean
+  }
+>(({ className, inset, ...props }, ref) => (
+  <DropdownMenuPrimitive.Label
+    ref={ref}
+    className={cn(
+      "px-2 py-1.5 text-sm font-semibold",
+      inset && "pl-8",
+      className
+    )}
+    {...props}
+  />
+))
+DropdownMenuLabel.displayName = DropdownMenuPrimitive.Label.displayName
+
+const DropdownMenuSeparator = React.forwardRef<
+  React.ElementRef<typeof DropdownMenuPrimitive.Separator>,
+  React.ComponentPropsWithoutRef<typeof DropdownMenuPrimitive.Separator>
+>(({ className, ...props }, ref) => (
+  <DropdownMenuPrimitive.Separator
+    ref={ref}
+    className={cn("-mx-1 my-1 h-px bg-muted", className)}
+    {...props}
+  />
+))
+DropdownMenuSeparator.displayName = DropdownMenuPrimitive.Separator.displayName
+
+const DropdownMenuShortcut = ({
+  className,
+  ...props
+}: React.HTMLAttributes<HTMLSpanElement>) => {
+  return (
+    <span
+      className={cn("ml-auto text-xs tracking-widest opacity-60", className)}
+      {...props}
+    />
+  )
+}
+DropdownMenuShortcut.displayName = "DropdownMenuShortcut"
+
+export {
+  DropdownMenu,
+  DropdownMenuTrigger,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuCheckboxItem,
+  DropdownMenuRadioItem,
+  DropdownMenuLabel,
+  DropdownMenuSeparator,
+  DropdownMenuShortcut,
+  DropdownMenuGroup,
+  DropdownMenuPortal,
+  DropdownMenuSub,
+  DropdownMenuSubContent,
+  DropdownMenuSubTrigger,
+  DropdownMenuRadioGroup,
+}
diff --git a/frontend/src/pages/HistoricalReportPage.tsx b/frontend/src/pages/HistoricalReportPage.tsx
new file mode 100644
index 0000000..1c98bf3
--- /dev/null
+++ b/frontend/src/pages/HistoricalReportPage.tsx
@@ -0,0 +1,495 @@
+import { useState, useEffect } from 'react';
+import { useParams, useSearchParams } from 'react-router-dom';
+import { Badge } from '@/components/ui/badge';
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs"
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
+import { WorkflowVisualizer } from '@/components/workflow/WorkflowVisualizer';
+import { ContextExplorer } from '@/components/workflow/ContextExplorer';
+import { useWorkflowStore } from '@/stores/useWorkflowStore';
+import { TaskStatus, schemas } from '@/api/schema.gen';
+import { Loader2, CheckCircle2, AlertCircle, Clock, PanelLeftClose, PanelLeftOpen, TerminalSquare, X } from 'lucide-react';
+import { Button } from '@/components/ui/button';
+import ReactMarkdown from 'react-markdown';
+import remarkGfm from 'remark-gfm';
+import { useAnalysisTemplates } from "@/hooks/useConfig"
+import { RecentReportsDropdown } from '@/components/RecentReportsDropdown';
+import { WorkflowStatus, ConnectionStatus, TaskState, TaskNode } from '@/types/workflow';
+import { Progress } from "@/components/ui/progress"
+import { cn, formatNodeName } from '@/lib/utils';
+
+export function HistoricalReportPage() {
+  const { id } = useParams();
+  const [searchParams] = useSearchParams();
+  const symbol = searchParams.get('symbol');
+  const market = searchParams.get('market');
+  const templateId = searchParams.get('templateId');
+  const [isSidebarCollapsed, setIsSidebarCollapsed] = useState(false);
+  const [isWorkflowSticky, setIsWorkflowSticky] = useState(false);
+
+  useEffect(() => {
+      const handleScroll = () => {
+          setIsWorkflowSticky(window.scrollY > 10);
+      };
+      window.addEventListener('scroll', handleScroll);
+      return () => window.removeEventListener('scroll', handleScroll);
+  }, []);
+  
+  const { 
+    initialize, 
+    status, 
+    mode,
+    loadFromSnapshot,
+    tasks,
+    dag,
+    activeTab,
+    setActiveTab
+  } = useWorkflowStore();
+
+  const { data: templates } = useAnalysisTemplates();
+  const templateName = templates && templateId ? templates[templateId]?.name : templateId;
+  
+  // Initialization Logic - Historical Mode Only
+  useEffect(() => {
+      if (!id) return;
+      
+      // Initialize store but don't set status to Connecting
+      initialize(id);
+      
+      const loadSnapshot = async () => {
+          try {
+              const res = await fetch(`/api/v1/workflow/snapshot/${id}`);
+              if (res.ok) {
+                  const snapshot = await res.json();
+                  loadFromSnapshot(snapshot.data_payload);
+
+                  // Rehydrate content for completed analysis tasks
+                  const payload = snapshot.data_payload;
+                  if (payload.task_graph?.nodes) {
+                      payload.task_graph.nodes.forEach(async (node: TaskNode) => {
+                          const status = payload.tasks_status?.[node.id];
+                          const outputCommit = payload.tasks_output?.[node.id];
+                          
+                          // We need the output path to know what file to fetch.
+                          // It should be injected into the config by the Orchestrator.
+                          // @ts-ignore
+                          const outputPath = node.config?.output_path;
+
+                          if (status === schemas.TaskStatus.enum.Completed && outputCommit && outputPath) {
+                              try {
+                                  // Fetch the file content from the Context Inspector API
+                                  const contentUrl = `/api/context/${id}/blob/${outputCommit}/${outputPath}`;
+                                  const contentRes = await fetch(contentUrl);
+                                  if (contentRes.ok) {
+                                      const text = await contentRes.text();
+                                      useWorkflowStore.getState().setTaskContent(node.id, text);
+                                  }
+                              } catch (err) {
+                                  console.warn(`[Historical] Failed to load content for ${node.id}:`, err);
+                              }
+                          }
+                      });
+                  }
+              } else {
+                  console.error("Failed to load snapshot:", res.statusText);
+              }
+          } catch (e) {
+              console.error("Snapshot load failed:", e);
+          }
+      };
+
+      loadSnapshot();
+      
+      // No SSE connection here
+      
+  }, [id, initialize, loadFromSnapshot]);
+
+    // Include ALL nodes in tabs to allow debugging context for DataFetch tasks
+    const tabNodes = dag?.nodes || [];
+
+  return (
+    <div className="container py-4 space-y-4 min-h-[calc(100vh-4rem)] flex flex-col">
+        {/* Header Area */}
+        <div className="flex items-center justify-between shrink-0">
+            <div className="space-y-1">
+                <h1 className="text-2xl font-bold tracking-tight flex items-center gap-2">
+                    {symbol}
+                    <Badge variant="outline" className="text-base font-normal">{market}</Badge>
+                    <WorkflowStatusBadge status={status} mode={mode} />
+                </h1>
+                <div className="flex items-center gap-4 text-sm text-muted-foreground">
+                    <span>Request ID: <span className="font-mono">{id}</span></span>
+                    {templateName && <span>Template: <span className="font-medium">{templateName}</span></span>}
+                </div>
+            </div>
+            <div className="flex gap-2">
+                 <RecentReportsDropdown />
+                 <Button size="sm" variant="outline">Export PDF</Button>
+            </div>
+        </div>
+
+        {/* Main Content Grid */}
+        <div className="flex gap-4 flex-1 items-start min-h-0">
+            {/* Left Col: Visualizer */}
+            <div className={cn(
+                "flex flex-col gap-4 transition-all duration-300 ease-in-out sticky top-20 h-[calc(100vh-6rem)]",
+                isSidebarCollapsed ? "w-[60px]" : "w-[33%] min-w-[350px]"
+            )}>
+                <Card className={cn(
+                    "flex-1 flex flex-col min-h-0 py-0 gap-0 overflow-hidden transition-all duration-300",
+                    isWorkflowSticky ? "shadow-lg border-primary/20" : "shadow-sm"
+                )}>
+                    <CardHeader 
+                        className={cn(
+                            "py-3 px-4 shrink-0 flex flex-row items-center space-y-0 transition-all duration-300 cursor-pointer hover:bg-muted/50", 
+                            isSidebarCollapsed ? "h-full flex-col justify-start py-3 gap-4" : "h-[60px] justify-between"
+                        )}
+                        onClick={() => setIsSidebarCollapsed(!isSidebarCollapsed)}
+                    >
+                        {!isSidebarCollapsed ? (
+                            <CardTitle className="text-sm font-medium truncate">Workflow Status</CardTitle>
+                        ) : (
+                            <div className="writing-vertical-lr transform rotate-180 text-sm font-medium whitespace-nowrap tracking-wide text-muted-foreground mt-2">
+                                Workflow Status
+                            </div>
+                        )}
+                        <Button 
+                            variant="ghost" 
+                            size="icon" 
+                            className={cn("h-8 w-8 shrink-0", isSidebarCollapsed && "order-first")} 
+                            onClick={(e) => {
+                                e.stopPropagation(); // Prevent double toggle if button is clicked
+                                setIsSidebarCollapsed(!isSidebarCollapsed);
+                            }}
+                        >
+                            {isSidebarCollapsed ? <PanelLeftOpen className="h-4 w-4" /> : <PanelLeftClose className="h-4 w-4" />}
+                        </Button>
+                    </CardHeader>
+                    <CardContent className={cn("p-0 flex-1 min-h-0 relative transition-opacity duration-200", isSidebarCollapsed ? "opacity-0 pointer-events-none" : "opacity-100")}>
+                         <div className="absolute inset-0">
+                            <WorkflowVisualizer />
+                         </div>
+                    </CardContent>
+                </Card>
+            </div>
+
+            {/* Right Col: Detail Tabs */}
+            <div className="flex-1 min-w-0 h-[calc(100vh-6rem)] flex flex-col">
+                <Tabs value={activeTab} onValueChange={setActiveTab} className="flex flex-col flex-1 min-h-0">
+                    <div className="w-full shrink-0">
+                        <TabsList className="h-auto p-0 bg-transparent gap-1 flex-wrap justify-start w-full border-b">
+                            <TabsTrigger 
+                                value="overview" 
+                                className="
+                                    rounded-t-md rounded-b-none 
+                                    border border-b-0 border-border/50 
+                                    bg-muted/60 
+                                    data-[state=active]:bg-background 
+                                    data-[state=active]:border-border 
+                                    data-[state=active]:border-b-background 
+                                    data-[state=active]:mb-[-1px] 
+                                    data-[state=active]:shadow-sm 
+                                    data-[state=active]:z-10
+                                    px-4 py-2.5
+                                    text-muted-foreground
+                                    data-[state=active]:text-foreground
+                                    relative
+                                "
+                            >
+                                Overview
+                            </TabsTrigger>
+                            {tabNodes.map((node: TaskNode) => (
+                                <TabsTrigger 
+                                    key={node.id} 
+                                    value={node.id}
+                                    className="
+                                        rounded-t-md rounded-b-none 
+                                        border border-b-0 border-border/50 
+                                        bg-muted/60 
+                                        data-[state=active]:bg-background 
+                                        data-[state=active]:border-border 
+                                        data-[state=active]:border-b-background 
+                                        data-[state=active]:mb-[-1px] 
+                                        data-[state=active]:shadow-sm 
+                                        data-[state=active]:z-10
+                                        px-4 py-2.5 gap-2
+                                        text-muted-foreground
+                                        data-[state=active]:text-foreground
+                                        relative
+                                    "
+                                >
+                                    {node.display_name || formatNodeName(node.name)}
+                                    <TaskStatusIndicator status={tasks[node.id]?.status || schemas.TaskStatus.enum.Pending} />
+                                </TabsTrigger>
+                            ))}
+                        </TabsList>
+                    </div>
+                    
+                    {/* Content Area */}
+                    <div className="mt-4 bg-background border rounded-md relative shadow-sm flex-1 min-h-0 overflow-hidden">
+                        <TabsContent value="overview" className="m-0 p-6 h-full overflow-auto">
+                            <OverviewTabContent 
+                                status={status}
+                                tasks={tasks}
+                                totalTasks={dag?.nodes.length || 0}
+                                completedTasks={Object.values(tasks).filter(t => t.status === schemas.TaskStatus.enum.Completed).length}
+                            />
+                        </TabsContent>
+
+                        {tabNodes.map((node: TaskNode) => (
+                            <TabsContent key={node.id} value={node.id} className="m-0 p-0 h-full">
+                                <TaskDetailView task={tasks[node.id]} requestId={id} mode={mode} />
+                            </TabsContent>
+                        ))}
+                    </div>
+                </Tabs>
+            </div>
+        </div>
+    </div>
+  );
+}
+
+
+function OverviewTabContent({ status, tasks, totalTasks, completedTasks }: { 
+    status: WorkflowStatus, 
+    tasks: Record<string, TaskState>,
+    totalTasks: number,
+    completedTasks: number
+}) {
+    const progress = totalTasks > 0 ? (completedTasks / totalTasks) * 100 : 0;
+    
+    // Find errors
+    const failedTasks = Object.entries(tasks).filter(([_, t]) => t.status === schemas.TaskStatus.enum.Failed);
+
+    return (
+        <div className="max-w-3xl mx-auto space-y-8 py-6">
+            {/* Hero Status */}
+            <Card className="border-primary/10 shadow-md">
+                <CardHeader className="text-center pb-2">
+                    <div className="mx-auto mb-4 bg-muted rounded-full p-3 w-fit">
+                        {status === schemas.TaskStatus.enum.Completed ? (
+                            <CheckCircle2 className="h-8 w-8 text-green-600" />
+                        ) : status === schemas.TaskStatus.enum.Failed ? (
+                            <AlertCircle className="h-8 w-8 text-destructive" />
+                        ) : (
+                            <Loader2 className="h-8 w-8 text-blue-500 animate-spin" />
+                        )}
+                    </div>
+                    <CardTitle className="text-2xl">
+                        {status === schemas.TaskStatus.enum.Completed ? "Analysis Completed" : 
+                         status === schemas.TaskStatus.enum.Failed ? "Analysis Failed" : 
+                         "Analysis In Progress"}
+                    </CardTitle>
+                </CardHeader>
+                <CardContent className="space-y-6">
+                    <div className="space-y-2">
+                        <div className="flex justify-between text-sm text-muted-foreground">
+                            <span>Overall Progress</span>
+                            <span>{Math.round(progress)}% ({completedTasks}/{totalTasks} tasks)</span>
+                        </div>
+                        <Progress value={progress} className="h-2" />
+                    </div>
+
+                    {/* Failed Tasks Warning */}
+                    {failedTasks.length > 0 && (
+                        <div className="bg-destructive/10 text-destructive rounded-md p-4 text-sm flex items-start gap-2">
+                            <AlertCircle className="h-5 w-5 shrink-0 mt-0.5" />
+                            <div className="space-y-1">
+                                <p className="font-semibold">Some tasks failed:</p>
+                                <ul className="list-disc list-inside">
+                                    {failedTasks.map(([id, t]) => (
+                                        <li key={id}>
+                                            <span className="font-medium">{id}</span>: {t.message || "Unknown error"}
+                                        </li>
+                                    ))}
+                                </ul>
+                            </div>
+                        </div>
+                    )}
+                </CardContent>
+            </Card>
+
+            {/* Stats Grid */}
+            <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
+                <Card>
+                    <CardHeader className="pb-2">
+                        <CardTitle className="text-sm font-medium text-muted-foreground">Total Tasks</CardTitle>
+                    </CardHeader>
+                    <CardContent>
+                        <div className="text-2xl font-bold">{totalTasks}</div>
+                    </CardContent>
+                </Card>
+                <Card>
+                    <CardHeader className="pb-2">
+                        <CardTitle className="text-sm font-medium text-muted-foreground">Completed</CardTitle>
+                    </CardHeader>
+                    <CardContent>
+                        <div className="text-2xl font-bold text-green-600">{completedTasks}</div>
+                    </CardContent>
+                </Card>
+                <Card>
+                    <CardHeader className="pb-2">
+                        <CardTitle className="text-sm font-medium text-muted-foreground">Duration</CardTitle>
+                    </CardHeader>
+                    <CardContent>
+                        <div className="text-2xl font-bold flex items-center gap-2">
+                            <Clock className="h-5 w-5 text-muted-foreground" />
+                            <span>--:--</span>
+                        </div>
+                    </CardContent>
+                </Card>
+            </div>
+        </div>
+    )
+}
+
+function TaskDetailView({ task, requestId, mode: _mode }: { task?: TaskState, requestId?: string, mode: 'realtime' | 'historical' }) {
+    const [isInspectorOpen, setIsInspectorOpen] = useState(false);
+    
+    // Only show context if we have commits
+    const hasContext = task?.inputCommit || task?.outputCommit;
+
+    return (
+        <div className="relative h-full flex flex-col overflow-hidden">
+            {/* Main Report View */}
+            <div className="flex-1 overflow-auto p-8 bg-background">
+                 <div className="max-w-4xl mx-auto">
+                    <div className="prose dark:prose-invert max-w-none prose-p:text-foreground prose-headings:text-foreground prose-li:text-foreground prose-strong:text-foreground prose-span:text-foreground">
+                        {task?.content ? (
+                            <ReactMarkdown remarkPlugins={[remarkGfm]}>
+                                {task.content || ''}
+                            </ReactMarkdown>
+                        ) : (
+                            <div className="flex flex-col items-center justify-center h-[300px] text-muted-foreground space-y-4">
+                                {task?.status === schemas.TaskStatus.enum.Pending && <p>Waiting to start...</p>}
+                                {task?.status === schemas.TaskStatus.enum.Running && !task?.content && <Loader2 className="h-8 w-8 animate-spin" />}
+                                {task?.status === schemas.TaskStatus.enum.Failed && (
+                                    <div className="text-center space-y-2">
+                                        <AlertCircle className="h-12 w-12 text-destructive mx-auto" />
+                                        <p className="font-medium text-destructive">Task Failed</p>
+                                        <p className="text-sm bg-destructive/10 p-2 rounded">{task.message}</p>
+                                    </div>
+                                )}
+                            </div>
+                        )}
+                        {task?.status === schemas.TaskStatus.enum.Running && (
+                            <span className="inline-block w-2 h-4 ml-1 bg-primary animate-pulse"/>
+                        )}
+                    </div>
+                 </div>
+            </div>
+            
+            {/* Inspector Toggle (Floating) */}
+            <div className="absolute top-4 right-6 z-10">
+                <Button variant="outline" size="sm" className="shadow-sm bg-background" onClick={() => setIsInspectorOpen(!isInspectorOpen)}>
+                    <TerminalSquare className="h-4 w-4 mr-2" />
+                    Inspector
+                </Button>
+            </div>
+
+            {/* Inspector Panel (Right Side Sheet) */}
+            <div className={cn(
+                "absolute top-0 right-0 h-full w-[600px] bg-background border-l shadow-2xl transition-transform duration-300 transform z-20 flex flex-col",
+                isInspectorOpen ? "translate-x-0" : "translate-x-full"
+            )}>
+                <div className="flex items-center justify-between p-4 border-b shrink-0">
+                    <h3 className="font-semibold flex items-center gap-2">
+                        <TerminalSquare className="h-4 w-4" />
+                        Task Inspector
+                    </h3>
+                    <Button variant="ghost" size="icon" onClick={() => setIsInspectorOpen(false)}>
+                        <X className="h-4 w-4" />
+                    </Button>
+                </div>
+                
+                <Tabs defaultValue="logs" className="flex-1 flex flex-col min-h-0">
+                    <div className="px-4 border-b shrink-0">
+                        <TabsList className="w-full justify-start h-10 p-0 bg-transparent">
+                            <TabsTrigger value="logs" className="rounded-none border-b-2 border-transparent data-[state=active]:border-primary px-4 py-2">Logs</TabsTrigger>
+                            {hasContext && (
+                                <TabsTrigger value="context" className="rounded-none border-b-2 border-transparent data-[state=active]:border-primary px-4 py-2">Context</TabsTrigger>
+                            )}
+                            <TabsTrigger value="raw" className="rounded-none border-b-2 border-transparent data-[state=active]:border-primary px-4 py-2">Metadata</TabsTrigger>
+                        </TabsList>
+                    </div>
+
+                    <TabsContent value="logs" className="flex-1 m-0 p-0 overflow-auto bg-muted/30">
+                        {task?.logs && task.logs.length > 0 ? (
+                            <div className="p-4 space-y-1 font-mono text-xs">
+                                {task.logs.map((log, i) => (
+                                    <div key={i} className="break-words whitespace-pre-wrap">{log}</div>
+                                ))}
+                            </div>
+                        ) : (
+                            <div className="flex items-center justify-center h-full text-muted-foreground text-sm">
+                                No logs available
+                            </div>
+                        )}
+                        {/* TODO: Add support for loading _execution.md in historical mode */}
+                    </TabsContent>
+
+                    <TabsContent value="context" className="flex-1 m-0 p-0 min-h-0">
+                        {requestId && (task?.inputCommit || task?.outputCommit) && (
+                            <ContextExplorer 
+                                reqId={requestId} 
+                                commitHash={task.outputCommit || task.inputCommit!}
+                                diffTargetHash={task.outputCommit ? task.inputCommit : undefined}
+                                className="h-full p-4"
+                            />
+                        )}
+                    </TabsContent>
+
+                    <TabsContent value="raw" className="flex-1 m-0 p-4 overflow-auto">
+                        <pre className="text-xs font-mono bg-muted p-4 rounded-lg overflow-auto">
+                            {JSON.stringify({
+                                status: task?.status,
+                                progress: task?.progress,
+                                message: task?.message,
+                                inputCommit: task?.inputCommit,
+                                outputCommit: task?.outputCommit
+                            }, null, 2)}
+                        </pre>
+                    </TabsContent>
+                </Tabs>
+            </div>
+        </div>
+    );
+}
+
+function WorkflowStatusBadge({ status, mode }: { status: WorkflowStatus, mode: 'realtime' | 'historical' }) {
+    const content = (
+        <div className="flex items-center gap-2">
+            {status === schemas.TaskStatus.enum.Running && <Loader2 className="h-3 w-3 animate-spin" />}
+            {status}
+            {mode === 'historical' && (
+                <span className="bg-muted-foreground/20 text-muted-foreground text-[10px] px-1.5 py-0.5 rounded uppercase tracking-wider font-semibold ml-1">
+                    Historical
+                </span>
+            )}
+        </div>
+    );
+
+    if (status === schemas.TaskStatus.enum.Running) {
+        return <Badge variant="default" className="bg-blue-500 hover:bg-blue-600 border-transparent">{content}</Badge>;
+    }
+    if (status === schemas.TaskStatus.enum.Completed) {
+        return <Badge variant="default" className="bg-green-600 hover:bg-green-600 border-transparent">{content}</Badge>;
+    }
+    if (status === schemas.TaskStatus.enum.Failed) {
+        return <Badge variant="destructive">{content}</Badge>;
+    }
+    if (status === ConnectionStatus.Connecting) {
+         return <Badge variant="secondary">CONNECTING...</Badge>;
+    }
+
+    return <Badge variant="outline">{content}</Badge>;
+}
+
+function TaskStatusIndicator({ status }: { status: TaskStatus }) {
+    switch (status) {
+        case schemas.TaskStatus.enum.Running: return <Loader2 className="h-3 w-3 animate-spin text-blue-500" />;
+        case schemas.TaskStatus.enum.Completed: return <CheckCircle2 className="h-3 w-3 text-green-500" />;
+        case schemas.TaskStatus.enum.Failed: return <div className="h-2 w-2 rounded-full bg-red-500" />;
+        default: return null;
+    }
+}
+
diff --git a/frontend/src/pages/ReportPage.tsx b/frontend/src/pages/ReportPage.tsx
index a5638b9..cfe7d09 100644
--- a/frontend/src/pages/ReportPage.tsx
+++ b/frontend/src/pages/ReportPage.tsx
@@ -7,20 +7,18 @@ import { WorkflowVisualizer } from '@/components/workflow/WorkflowVisualizer';
 import { ContextExplorer } from '@/components/workflow/ContextExplorer';
 import { useWorkflowStore } from '@/stores/useWorkflowStore';
 import { TaskStatus, schemas } from '@/api/schema.gen';
-import { Loader2, CheckCircle2, AlertCircle, Clock, PanelLeftClose, PanelLeftOpen, FileText, GitBranch, ArrowRight } from 'lucide-react';
+import { Loader2, CheckCircle2, AlertCircle, Clock, PanelLeftClose, PanelLeftOpen, FileText, GitBranch, TerminalSquare, X, List, Trash2 } from 'lucide-react';
 import { Button } from '@/components/ui/button';
 import ReactMarkdown from 'react-markdown';
 import remarkGfm from 'remark-gfm';
 import { useAnalysisTemplates } from "@/hooks/useConfig"
-import { RealtimeLogs } from '@/components/RealtimeLogs';
+import { RecentReportsDropdown } from '@/components/RecentReportsDropdown';
 import { WorkflowStatus, ConnectionStatus, TaskState } from '@/types/workflow';
 import { Progress } from "@/components/ui/progress"
 import { cn, formatNodeName } from '@/lib/utils';
-import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogTrigger } from "@/components/ui/dialog";
 
 export function ReportPage() {
   const { id } = useParams();
-  // ... (rest of the imports)
   const [searchParams] = useSearchParams();
   const symbol = searchParams.get('symbol');
   const market = searchParams.get('market');
@@ -30,9 +28,6 @@ export function ReportPage() {
 
   useEffect(() => {
       const handleScroll = () => {
-          // Detect if user has scrolled down enough to trigger visual sticky change
-          // Header (64) + Padding (16) = 80px. 
-          // We add a small threshold to avoid flickering
           setIsWorkflowSticky(window.scrollY > 10);
       };
       window.addEventListener('scroll', handleScroll);
@@ -43,6 +38,8 @@ export function ReportPage() {
     initialize, 
     handleEvent,
     status, 
+    mode,
+    loadFromSnapshot,
     tasks,
     dag,
     activeTab,
@@ -52,38 +49,56 @@ export function ReportPage() {
   const { data: templates } = useAnalysisTemplates();
   const templateName = templates && templateId ? templates[templateId]?.name : templateId;
   
-  // SSE Connection Logic
+  // Initialization & Connection Logic
   useEffect(() => {
       if (!id) return;
       initialize(id);
       
-      // Connect to real backend SSE
-      const eventSource = new EventSource(`/api/v1/workflow/events/${id}`);
-      
-      eventSource.onmessage = (event) => {
+      let eventSource: EventSource | null = null;
+
+      // 1. Attempt to load snapshot (Parallel / Fallback)
+      // If the workflow is already finished, SSE might close immediately or 404.
+      const loadSnapshot = async () => {
           try {
-              const parsedEvent = JSON.parse(event.data);
-              handleEvent(parsedEvent);
+              const res = await fetch(`/api/v1/workflow/snapshot/${id}`);
+              if (res.ok) {
+                  const snapshot = await res.json();
+                  loadFromSnapshot(snapshot.data_payload);
+              }
           } catch (e) {
-              console.error("Failed to parse SSE event:", e);
+              console.warn("Snapshot load failed (normal for new tasks):", e);
           }
       };
 
-      eventSource.onerror = (err) => {
-          console.error("SSE Connection Error:", err);
-          // Optional: Retry logic or error state update
-          // eventSource.close();
-      };
+      loadSnapshot();
+      
+      // 2. Connect to Real-time Stream
+      try {
+          eventSource = new EventSource(`/api/v1/workflow/events/${id}`);
+          
+          eventSource.onmessage = (event) => {
+              try {
+                  const parsedEvent = JSON.parse(event.data);
+                  handleEvent(parsedEvent);
+              } catch (e) {
+                  console.error("Failed to parse SSE event:", e);
+              }
+          };
+
+          eventSource.onerror = (err) => {
+              // Standard behavior: if connection closes, it might be finished or failed.
+              // We rely on Snapshot for history if SSE fails.
+              console.warn("SSE Connection Closed/Error", err);
+              eventSource?.close();
+          };
+      } catch (e) {
+          console.error("Failed to init SSE:", e);
+      }
 
       return () => {
-          eventSource.close();
+          eventSource?.close();
       };
-  }, [id, initialize, handleEvent]);
-
-    // Combine logs from all tasks for the "Global Log" view
-    const allLogs = useMemo(() => Object.entries(tasks).flatMap(([taskId, state]) => 
-        state.logs.map(log => ({ taskId, log }))
-    ), [tasks]);
+  }, [id, initialize, handleEvent, loadFromSnapshot]);
 
     // Include ALL nodes in tabs to allow debugging context for DataFetch tasks
     const tabNodes = dag?.nodes || [];
@@ -96,7 +111,7 @@ export function ReportPage() {
                 <h1 className="text-2xl font-bold tracking-tight flex items-center gap-2">
                     {symbol}
                     <Badge variant="outline" className="text-base font-normal">{market}</Badge>
-                    <WorkflowStatusBadge status={status} />
+                    <WorkflowStatusBadge status={status} mode={mode} />
                 </h1>
                 <div className="flex items-center gap-4 text-sm text-muted-foreground">
                     <span>Request ID: <span className="font-mono">{id}</span></span>
@@ -104,12 +119,37 @@ export function ReportPage() {
                 </div>
             </div>
             <div className="flex gap-2">
+                 <RecentReportsDropdown />
+                 <Button 
+                    size="sm" 
+                    variant="destructive" 
+                    className="gap-2"
+                    onClick={async () => {
+                        if (confirm("Are you sure you want to clear ALL history? This cannot be undone.")) {
+                            try {
+                                 const res = await fetch('/api/v1/system/history', { method: 'DELETE' });
+                                 if (res.ok) {
+                                     window.location.href = '/';
+                                 } else {
+                                     console.error("Failed to clear history");
+                                     alert("Failed to clear history");
+                                 }
+                            } catch (e) {
+                                 console.error(e);
+                                 alert("Error clearing history");
+                            }
+                        }
+                    }}
+                 >
+                    <Trash2 className="h-4 w-4" />
+                    Clear History
+                 </Button>
                  <Button size="sm" variant="outline">Export PDF</Button>
             </div>
         </div>
 
         {/* Main Content Grid */}
-        <div className="flex gap-4 flex-1 items-start">
+        <div className="flex gap-4 flex-1 items-start min-h-0">
             {/* Left Col: Visualizer */}
             <div className={cn(
                 "flex flex-col gap-4 transition-all duration-300 ease-in-out sticky top-20 h-[calc(100vh-6rem)]",
@@ -154,8 +194,8 @@ export function ReportPage() {
             </div>
 
             {/* Right Col: Detail Tabs */}
-            <div className="flex-1 min-w-0">
-                <Tabs value={activeTab} onValueChange={setActiveTab} className="flex flex-col">
+            <div className="flex-1 min-w-0 h-[calc(100vh-6rem)] flex flex-col">
+                <Tabs value={activeTab} onValueChange={setActiveTab} className="flex flex-col flex-1 min-h-0">
                     <div className="w-full shrink-0">
                         <TabsList className="h-auto p-0 bg-transparent gap-1 flex-wrap justify-start w-full border-b">
                             <TabsTrigger 
@@ -206,8 +246,8 @@ export function ReportPage() {
                     </div>
                     
                     {/* Content Area */}
-                    <div className="mt-4 bg-background border rounded-md relative shadow-sm">
-                        <TabsContent value="overview" className="m-0 p-6">
+                    <div className="mt-4 bg-background border rounded-md relative shadow-sm flex-1 min-h-0 overflow-hidden">
+                        <TabsContent value="overview" className="m-0 p-6 h-full overflow-auto">
                             <OverviewTabContent 
                                 status={status}
                                 tasks={tasks}
@@ -217,16 +257,14 @@ export function ReportPage() {
                         </TabsContent>
 
                         {tabNodes.map(node => (
-                            <TabsContent key={node.id} value={node.id} className="m-0 p-0">
-                                <TaskDetailView task={tasks[node.id]} requestId={id} />
+                            <TabsContent key={node.id} value={node.id} className="m-0 p-0 h-full">
+                                <TaskDetailView taskId={node.id} task={tasks[node.id]} requestId={id} mode={mode} />
                             </TabsContent>
                         ))}
                     </div>
                 </Tabs>
             </div>
         </div>
-        
-        <RealtimeLogs logs={allLogs} className="shrink-0 sticky bottom-0 z-10 bg-background border-t" />
     </div>
   );
 }
@@ -238,7 +276,6 @@ function OverviewTabContent({ status, tasks, totalTasks, completedTasks }: {
     totalTasks: number,
     completedTasks: number
 }) {
-    // ... (implementation remains same)
     const progress = totalTasks > 0 ? (completedTasks / totalTasks) * 100 : 0;
     
     // Find errors
@@ -326,40 +363,155 @@ function OverviewTabContent({ status, tasks, totalTasks, completedTasks }: {
     )
 }
 
-function TaskDetailView({ task, requestId }: { task?: TaskState, requestId?: string }) {
-    // Only show context tab if we have commits
+function TaskDetailView({ taskId, task, requestId, mode }: { taskId: string, task?: TaskState, requestId?: string, mode: 'realtime' | 'historical' }) {
+    const [isInspectorOpen, setIsInspectorOpen] = useState(false);
+    const { setTaskContent } = useWorkflowStore();
+    
+    // Fetch content for historical tasks if missing
+    useEffect(() => {
+        if (!requestId || !task || !task.outputCommit) return;
+        
+        // Only proceed if content is missing and task is finished (or has output commit)
+        if (task.content || (task.status !== schemas.TaskStatus.enum.Completed && task.status !== schemas.TaskStatus.enum.Failed)) {
+            return;
+        }
+
+        const fetchContent = async () => {
+            try {
+                let targetFile = null;
+
+                // Strategy 1: Use Metadata (Preferred)
+                // Now task.metadata is strongly typed as TaskMetadata from generated schema
+                if (task.metadata && task.metadata.output_path) {
+                    targetFile = task.metadata.output_path;
+                } 
+                // Strategy 2: Infer from Diff (Fallback)
+                else if (task.inputCommit) {
+                    const diffRes = await fetch(`/api/context/${requestId}/diff/${task.inputCommit}/${task.outputCommit}`);
+                    if (diffRes.ok) {
+                        const changes = await diffRes.json();
+                        const files: string[] = changes.map((c: any) => c.Added || c.Modified).filter(Boolean);
+                        
+                        // Heuristic to find the "Main Report" or "Output"
+                        const reportFile = files.find((f: string) => f.endsWith('.md') && !f.endsWith('_execution.md') && !f.endsWith('_trace.md'));
+                        const execFile = files.find((f: string) => f.endsWith('_execution.md'));
+                        const anyMd = files.find((f: string) => f.endsWith('.md'));
+                        const anyJson = files.find((f: string) => f.endsWith('.json'));
+
+                        targetFile = reportFile || execFile || anyMd || anyJson || files[0];
+                    }
+                }
+
+                if (targetFile) {
+                     const contentRes = await fetch(`/api/context/${requestId}/blob/${task.outputCommit}/${encodeURIComponent(targetFile)}`);
+                     if (contentRes.ok) {
+                         const text = await contentRes.text();
+                         
+                         if (targetFile.endsWith('.json')) {
+                             try {
+                                 const obj = JSON.parse(text);
+                                 setTaskContent(taskId, JSON.stringify(obj, null, 2));
+                             } catch {
+                                 setTaskContent(taskId, text);
+                             }
+                         } else {
+                             setTaskContent(taskId, text);
+                         }
+                     }
+                }
+             } catch (e) {
+                 console.error("Auto-fetch content failed", e);
+             }
+        };
+
+        fetchContent();
+        
+    }, [requestId, taskId, task?.outputCommit, task?.inputCommit, task?.status, task?.content, task?.metadata, setTaskContent]);
+    
+    // Only show context if we have commits
     const hasContext = task?.inputCommit || task?.outputCommit;
 
-    if (task?.status === schemas.TaskStatus.enum.Failed && !task.content) {
-        return (
-            <div className="flex flex-col h-full">
-                <Tabs defaultValue="report" className="flex-1 flex flex-col">
-                    {hasContext && (
-                         <div className="border-b px-4 bg-muted/40">
-                            <TabsList className="bg-transparent p-0 h-10 w-full justify-start gap-6">
-                                <TabsTrigger value="report" className="data-[state=active]:bg-transparent data-[state=active]:shadow-none data-[state=active]:border-b-2 data-[state=active]:border-primary rounded-none px-0 py-2 h-full">
-                                    <span className="flex items-center gap-2"><FileText className="w-4 h-4" /> Report Content</span>
-                                </TabsTrigger>
-                                <TabsTrigger value="context" className="data-[state=active]:bg-transparent data-[state=active]:shadow-none data-[state=active]:border-b-2 data-[state=active]:border-primary rounded-none px-0 py-2 h-full">
-                                     <span className="flex items-center gap-2"><GitBranch className="w-4 h-4" /> Context Inspector</span>
-                                </TabsTrigger>
-                            </TabsList>
-                        </div>
-                    )}
-                    <TabsContent value="report" className="flex-1 m-0">
-                        <div className="flex flex-col items-center justify-center h-full min-h-[400px] p-8 text-muted-foreground space-y-4">
-                            <AlertCircle className="h-12 w-12 text-destructive/80 mb-2" />
-                            <h3 className="text-lg font-medium text-foreground">Analysis Failed</h3>
-                            <div className="max-w-xl text-center space-y-2">
-                                <p className="text-sm text-muted-foreground">The task encountered an error and could not complete.</p>
-                                <p className="text-destructive bg-destructive/10 p-4 rounded-md border border-destructive/20 font-mono text-sm whitespace-pre-wrap">
-                                    {task.message || "Unknown error occurred."}
-                                </p>
+    return (
+        <div className="relative h-full flex flex-col overflow-hidden">
+            {/* Main Report View */}
+            <div className="flex-1 overflow-auto p-8 bg-background">
+                 <div className="max-w-4xl mx-auto">
+                    <div className="prose dark:prose-invert max-w-none prose-p:text-foreground prose-headings:text-foreground prose-li:text-foreground prose-strong:text-foreground prose-span:text-foreground">
+                        {task?.content ? (
+                            <ReactMarkdown remarkPlugins={[remarkGfm]}>
+                                {task.content || ''}
+                            </ReactMarkdown>
+                        ) : (
+                            <div className="flex flex-col items-center justify-center h-[300px] text-muted-foreground space-y-4">
+                                {task?.status === schemas.TaskStatus.enum.Pending && <p>Waiting to start...</p>}
+                                {task?.status === schemas.TaskStatus.enum.Running && !task?.content && <Loader2 className="h-8 w-8 animate-spin" />}
+                                {task?.status === schemas.TaskStatus.enum.Failed && (
+                                    <div className="text-center space-y-2">
+                                        <AlertCircle className="h-12 w-12 text-destructive mx-auto" />
+                                        <p className="font-medium text-destructive">Task Failed</p>
+                                        <p className="text-sm bg-destructive/10 p-2 rounded">{task.message}</p>
+                                    </div>
+                                )}
                             </div>
-                        </div>
+                        )}
+                        {task?.status === schemas.TaskStatus.enum.Running && (
+                            <span className="inline-block w-2 h-4 ml-1 bg-primary animate-pulse"/>
+                        )}
+                    </div>
+                 </div>
+            </div>
+            
+            {/* Inspector Toggle (Floating) */}
+            <div className="absolute top-4 right-6 z-10">
+                <Button variant="outline" size="sm" className="shadow-sm bg-background" onClick={() => setIsInspectorOpen(!isInspectorOpen)}>
+                    <TerminalSquare className="h-4 w-4 mr-2" />
+                    Inspector
+                </Button>
+            </div>
+
+            {/* Inspector Panel (Right Side Sheet) */}
+            <div className={cn(
+                "absolute top-0 right-0 h-full w-[600px] bg-background border-l shadow-2xl transition-transform duration-300 transform z-20 flex flex-col",
+                isInspectorOpen ? "translate-x-0" : "translate-x-full"
+            )}>
+                <div className="flex items-center justify-between p-4 border-b shrink-0">
+                    <h3 className="font-semibold flex items-center gap-2">
+                        <TerminalSquare className="h-4 w-4" />
+                        Task Inspector
+                    </h3>
+                    <Button variant="ghost" size="icon" onClick={() => setIsInspectorOpen(false)}>
+                        <X className="h-4 w-4" />
+                    </Button>
+                </div>
+                
+                <Tabs defaultValue="logs" className="flex-1 flex flex-col min-h-0">
+                    <div className="px-4 border-b shrink-0">
+                        <TabsList className="w-full justify-start h-10 p-0 bg-transparent">
+                            <TabsTrigger value="logs" className="rounded-none border-b-2 border-transparent data-[state=active]:border-primary px-4 py-2">Logs</TabsTrigger>
+                            {hasContext && (
+                                <TabsTrigger value="context" className="rounded-none border-b-2 border-transparent data-[state=active]:border-primary px-4 py-2">Context</TabsTrigger>
+                            )}
+                            <TabsTrigger value="raw" className="rounded-none border-b-2 border-transparent data-[state=active]:border-primary px-4 py-2">Metadata</TabsTrigger>
+                        </TabsList>
+                    </div>
+
+                    <TabsContent value="logs" className="flex-1 m-0 p-0 overflow-auto bg-muted/30">
+                        {task?.logs && task.logs.length > 0 ? (
+                            <div className="p-4 space-y-1 font-mono text-xs">
+                                {task.logs.map((log, i) => (
+                                    <div key={i} className="break-words whitespace-pre-wrap">{log}</div>
+                                ))}
+                            </div>
+                        ) : (
+                            <div className="flex items-center justify-center h-full text-muted-foreground text-sm">
+                                No logs available
+                            </div>
+                        )}
+                        {/* TODO: Add support for loading _execution.md in historical mode */}
                     </TabsContent>
-                     <TabsContent value="context" className="flex-1 m-0 h-[600px]">
-                        {requestId && (task.inputCommit || task.outputCommit) && (
+
+                    <TabsContent value="context" className="flex-1 m-0 p-0 min-h-0">
+                        {requestId && (task?.inputCommit || task?.outputCommit) && (
                             <ContextExplorer 
                                 reqId={requestId} 
                                 commitHash={task.outputCommit || task.inputCommit!}
@@ -368,95 +520,52 @@ function TaskDetailView({ task, requestId }: { task?: TaskState, requestId?: str
                             />
                         )}
                     </TabsContent>
+
+                    <TabsContent value="raw" className="flex-1 m-0 p-4 overflow-auto">
+                        <pre className="text-xs font-mono bg-muted p-4 rounded-lg overflow-auto">
+                            {JSON.stringify({
+                                status: task?.status,
+                                progress: task?.progress,
+                                message: task?.message,
+                                inputCommit: task?.inputCommit,
+                                outputCommit: task?.outputCommit
+                            }, null, 2)}
+                        </pre>
+                    </TabsContent>
                 </Tabs>
             </div>
-        );
-    }
-
-    return (
-        <div className="flex flex-col h-full">
-             <Tabs defaultValue="report" className="flex-1 flex flex-col">
-                {hasContext && (
-                        <div className="border-b px-4 bg-muted/40">
-                        <TabsList className="bg-transparent p-0 h-10 w-full justify-start gap-6">
-                            <TabsTrigger value="report" className="data-[state=active]:bg-transparent data-[state=active]:shadow-none data-[state=active]:border-b-2 data-[state=active]:border-primary rounded-none px-0 py-2 h-full">
-                                <span className="flex items-center gap-2"><FileText className="w-4 h-4" /> Report Content</span>
-                            </TabsTrigger>
-                            <TabsTrigger value="context" className="data-[state=active]:bg-transparent data-[state=active]:shadow-none data-[state=active]:border-b-2 data-[state=active]:border-primary rounded-none px-0 py-2 h-full">
-                                    <span className="flex items-center gap-2"><GitBranch className="w-4 h-4" /> Context Inspector</span>
-                            </TabsTrigger>
-                        </TabsList>
-                    </div>
-                )}
-                
-                <TabsContent value="report" className="flex-1 m-0 min-h-0 overflow-auto">
-                    <div className="p-8 max-w-4xl mx-auto">
-                        <div className="prose dark:prose-invert max-w-none prose-p:text-foreground prose-headings:text-foreground prose-li:text-foreground prose-strong:text-foreground prose-span:text-foreground">
-                            {task?.content ? (
-                                <ReactMarkdown remarkPlugins={[remarkGfm]}>
-                                    {task.content || ''}
-                                </ReactMarkdown>
-                            ) : (
-                                <div className="flex flex-col items-center justify-center h-[300px] text-muted-foreground space-y-4">
-                                {task?.status === schemas.TaskStatus.enum.Pending && <p>Waiting to start...</p>}
-                                {task?.status === schemas.TaskStatus.enum.Running && !task?.content && <Loader2 className="h-8 w-8 animate-spin" />}
-                                </div>
-                            )}
-                            {task?.status === schemas.TaskStatus.enum.Running && (
-                                <span className="inline-block w-2 h-4 ml-1 bg-primary animate-pulse"/>
-                            )}
-                        </div>
-                    </div>
-                </TabsContent>
-                
-                <TabsContent value="context" className="flex-1 m-0 h-[600px]">
-                    {requestId && (task?.inputCommit || task?.outputCommit) && (
-                        <ContextExplorer 
-                            reqId={requestId} 
-                            commitHash={task.outputCommit || task.inputCommit!}
-                            diffTargetHash={task.outputCommit ? task.inputCommit : undefined}
-                            className="h-full p-4"
-                        />
-                    )}
-                </TabsContent>
-            </Tabs>
         </div>
     );
 }
 
-function WorkflowStatusBadge({ status }: { status: WorkflowStatus }) {
+function WorkflowStatusBadge({ status, mode }: { status: WorkflowStatus, mode: 'realtime' | 'historical' }) {
     // Map local store status to TaskStatus enum for consistency where possible
-    // These comparisons are now type-safe against the WorkflowStatus literal union type
+    const content = (
+        <div className="flex items-center gap-2">
+            {status === schemas.TaskStatus.enum.Running && <Loader2 className="h-3 w-3 animate-spin" />}
+            {status}
+            {mode === 'historical' && (
+                <span className="bg-muted-foreground/20 text-muted-foreground text-[10px] px-1.5 py-0.5 rounded uppercase tracking-wider font-semibold ml-1">
+                    Historical
+                </span>
+            )}
+        </div>
+    );
+
     if (status === schemas.TaskStatus.enum.Running) {
-        return (
-            <Badge variant="default" className="bg-blue-500 hover:bg-blue-600 border-transparent flex items-center gap-1">
-                <Loader2 className="h-3 w-3 animate-spin" />
-                {schemas.TaskStatus.enum.Running}
-            </Badge>
-        );
+        return <Badge variant="default" className="bg-blue-500 hover:bg-blue-600 border-transparent">{content}</Badge>;
     }
-
     if (status === schemas.TaskStatus.enum.Completed) {
-        return (
-            <Badge variant="default" className="bg-green-600 hover:bg-green-600 border-transparent">
-                 {schemas.TaskStatus.enum.Completed}
-            </Badge>
-        );
+        return <Badge variant="default" className="bg-green-600 hover:bg-green-600 border-transparent">{content}</Badge>;
     }
-
     if (status === schemas.TaskStatus.enum.Failed) {
-        return (
-            <Badge variant="destructive">
-                {schemas.TaskStatus.enum.Failed}
-            </Badge>
-        );
+        return <Badge variant="destructive">{content}</Badge>;
     }
-
     if (status === ConnectionStatus.Connecting) {
-         return <Badge variant="secondary">CONNECTING</Badge>;
+         return <Badge variant="secondary">CONNECTING...</Badge>;
     }
 
-    return <Badge variant="outline">{status}</Badge>;
+    return <Badge variant="outline">{content}</Badge>;
 }
 
 function TaskStatusIndicator({ status }: { status: TaskStatus }) {
diff --git a/frontend/src/stores/useWorkflowStore.ts b/frontend/src/stores/useWorkflowStore.ts
index ff6acd1..590c3fb 100644
--- a/frontend/src/stores/useWorkflowStore.ts
+++ b/frontend/src/stores/useWorkflowStore.ts
@@ -5,6 +5,7 @@ import { WorkflowDag, TaskState, TaskStatus, WorkflowEvent, WorkflowStatus, Conn
 interface WorkflowStoreState {
   requestId: string | null;
   status: WorkflowStatus;
+  mode: 'realtime' | 'historical';
   dag: WorkflowDag | null;
   tasks: Record<string, TaskState>;
   error: string | null;
@@ -12,6 +13,7 @@ interface WorkflowStoreState {
   
   // Actions
   initialize: (requestId: string) => void;
+  setMode: (mode: 'realtime' | 'historical') => void;
   setDag: (dag: WorkflowDag) => void;
   updateTaskStatus: (taskId: string, status: TaskStatus, message?: string, progress?: number, inputCommit?: string, outputCommit?: string) => void;
   updateTaskContent: (taskId: string, delta: string) => void; // Stream content (append)
@@ -21,12 +23,14 @@ interface WorkflowStoreState {
   completeWorkflow: (result: unknown) => void;
   failWorkflow: (reason: string) => void;
   handleEvent: (event: WorkflowEvent) => void;
+  loadFromSnapshot: (snapshotPayload: any) => void;
   reset: () => void;
 }
 
 export const useWorkflowStore = create<WorkflowStoreState>((set, get) => ({
   requestId: null,
   status: ConnectionStatus.Idle,
+  mode: 'realtime',
   dag: null,
   tasks: {},
   error: null,
@@ -35,11 +39,14 @@ export const useWorkflowStore = create<WorkflowStoreState>((set, get) => ({
   initialize: (requestId) => set({ 
       requestId, 
       status: ConnectionStatus.Connecting, 
+      mode: 'realtime',
       error: null,
       tasks: {},
       activeTab: 'overview'
   }),
 
+  setMode: (mode) => set({ mode }),
+
   setDag: (dag) => {
       // Initialize tasks based on DAG
       const initialTasks: Record<string, TaskState> = {};
@@ -155,16 +162,15 @@ export const useWorkflowStore = create<WorkflowStoreState>((set, get) => ({
   
   handleEvent: (event: WorkflowEvent) => {
       const state = get();
-      console.log('Handling Event:', event.type, event);
+      // console.log('Handling Event:', event.type, event);
 
       switch (event.type) {
           case 'WorkflowStarted':
               state.setDag(event.payload.task_graph);
               break;
           case 'TaskStateChanged': {
-              // Explicit typing to help TS
               const p = event.payload; 
-              // @ts-ignore - input_commit/output_commit added
+              // @ts-ignore
               state.updateTaskStatus(
                   p.task_id, 
                   p.status, 
@@ -180,7 +186,7 @@ export const useWorkflowStore = create<WorkflowStoreState>((set, get) => ({
               state.updateTaskContent(p.task_id, p.content_delta);
               break;
           }
-          // @ts-ignore - TaskLog is manually added to schema.gen.ts
+          // @ts-ignore
           case 'TaskLog': {
               const p = event.payload;
               const time = new Date(p.timestamp).toLocaleTimeString();
@@ -197,7 +203,7 @@ export const useWorkflowStore = create<WorkflowStoreState>((set, get) => ({
               break;
           }
           case 'WorkflowStateSnapshot': {
-              // Re-hydrate state
+              // Used for real-time rehydration (e.g. page refresh)
               if (event.payload.task_graph) {
                   state.setDag(event.payload.task_graph);
               }
@@ -216,8 +222,17 @@ export const useWorkflowStore = create<WorkflowStoreState>((set, get) => ({
                if (event.payload.tasks_output) {
                   Object.entries(event.payload.tasks_output).forEach(([taskId, outputCommit]) => {
                       if (newTasks[taskId] && outputCommit) {
-                          // Correctly mapping outputCommit, not content
-                          newTasks[taskId] = { ...newTasks[taskId], outputCommit: outputCommit };
+                          newTasks[taskId] = { ...newTasks[taskId], outputCommit: outputCommit as string };
+                      }
+                  });
+              }
+
+              if (event.payload.tasks_metadata) {
+                  Object.entries(event.payload.tasks_metadata).forEach(([taskId, metadata]) => {
+                      if (newTasks[taskId] && metadata) {
+                          // Note: The generated client types define metadata as TaskMetadata which includes optional paths.
+                          // We store it directly as it matches our TaskState.metadata shape partially.
+                          newTasks[taskId] = { ...newTasks[taskId], metadata: metadata };
                       }
                   });
               }
@@ -228,9 +243,40 @@ export const useWorkflowStore = create<WorkflowStoreState>((set, get) => ({
       }
   },
 
+  loadFromSnapshot: (payload: any) => {
+      const dag = payload.task_graph;
+      const tasks_status = payload.tasks_status;
+      const tasks_output = payload.tasks_output;
+      const tasks_metadata = payload.tasks_metadata;
+      
+      const newTasks: Record<string, TaskState> = {};
+      
+      if (dag) {
+          dag.nodes.forEach((node: any) => {
+              newTasks[node.id] = {
+                  status: tasks_status?.[node.id] || node.initial_status,
+                  logs: [],
+                  progress: 100, 
+                  content: '', // Content is not in snapshot, needs on-demand loading
+                  outputCommit: tasks_output?.[node.id],
+                  metadata: tasks_metadata?.[node.id]
+              };
+          });
+      }
+      
+      set({ 
+          dag, 
+          tasks: newTasks, 
+          status: schemas.TaskStatus.enum.Completed, 
+          mode: 'historical',
+          error: null
+      });
+  },
+
   reset: () => set({ 
       requestId: null, 
       status: ConnectionStatus.Idle, 
+      mode: 'realtime',
       dag: null, 
       tasks: {}, 
       error: null,
diff --git a/frontend/src/types/workflow.ts b/frontend/src/types/workflow.ts
index dcefe0c..1dbce30 100644
--- a/frontend/src/types/workflow.ts
+++ b/frontend/src/types/workflow.ts
@@ -44,4 +44,5 @@ export interface TaskState {
     // Context Inspector
     inputCommit?: string;
     outputCommit?: string;
+    metadata?: import('../api/schema.gen').TaskMetadata; // (New) Metadata from backend
 }
diff --git a/openapi.json b/openapi.json
index abc6246..d66b041 100644
--- a/openapi.json
+++ b/openapi.json
@@ -9,6 +9,77 @@
     "version": "0.1.0"
   },
   "paths": {
+    "/api/v1/analysis-results": {
+      "get": {
+        "tags": [
+          "api"
+        ],
+        "summary": "[GET /v1/analysis-results?symbol=...]",
+        "operationId": "get_analysis_results_by_symbol",
+        "parameters": [
+          {
+            "name": "symbol",
+            "in": "query",
+            "description": "Optional symbol to filter results",
+            "required": false,
+            "schema": {
+              "type": "string"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "List of analysis results",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "type": "array",
+                  "items": {
+                    "$ref": "#/components/schemas/AnalysisResultDto"
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+    },
+    "/api/v1/analysis-results/{id}": {
+      "get": {
+        "tags": [
+          "api"
+        ],
+        "summary": "[GET /api/v1/analysis-results/:id]",
+        "operationId": "get_analysis_result_by_id",
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "description": "Analysis result ID",
+            "required": true,
+            "schema": {
+              "type": "string",
+              "format": "uuid"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Analysis result",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/AnalysisResultDto"
+                }
+              }
+            }
+          },
+          "404": {
+            "description": "Not found"
+          }
+        }
+      }
+    },
     "/api/v1/configs/analysis_template_sets": {
       "get": {
         "tags": [
@@ -460,6 +531,50 @@
         },
         "additionalProperties": false
       },
+      "AnalysisResultDto": {
+        "type": "object",
+        "description": "Represents a persisted analysis result read from the database.",
+        "required": [
+          "id",
+          "request_id",
+          "symbol",
+          "template_id",
+          "module_id",
+          "content",
+          "meta_data",
+          "created_at"
+        ],
+        "properties": {
+          "content": {
+            "type": "string"
+          },
+          "created_at": {
+            "type": "string",
+            "format": "date-time"
+          },
+          "id": {
+            "type": "string",
+            "format": "uuid"
+          },
+          "meta_data": {
+            "$ref": "#/components/schemas/Value"
+          },
+          "module_id": {
+            "type": "string"
+          },
+          "request_id": {
+            "type": "string",
+            "format": "uuid"
+          },
+          "symbol": {
+            "type": "string"
+          },
+          "template_id": {
+            "type": "string"
+          }
+        },
+        "additionalProperties": false
+      },
       "AnalysisTemplateSet": {
         "type": "object",
         "description": "A single, self-contained set of analysis modules representing a complete workflow.\ne.g., \"Standard Fundamental Analysis\"",
@@ -1021,6 +1136,27 @@
         },
         "additionalProperties": false
       },
+      "TaskMetadata": {
+        "type": "object",
+        "description": "Metadata produced by a task execution.",
+        "properties": {
+          "execution_log_path": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "description": "The execution trace log path"
+          },
+          "output_path": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "description": "The primary output file path (e.g. analysis report)"
+          }
+        },
+        "additionalProperties": false
+      },
       "TaskNode": {
         "type": "object",
         "required": [
@@ -1156,6 +1292,7 @@
         },
         "additionalProperties": false
       },
+      "Value": {},
       "WorkflowDag": {
         "type": "object",
         "required": [
@@ -1427,12 +1564,22 @@
                   "timestamp",
                   "task_graph",
                   "tasks_status",
-                  "tasks_output"
+                  "tasks_output",
+                  "tasks_metadata"
                 ],
                 "properties": {
                   "task_graph": {
                     "$ref": "#/components/schemas/WorkflowDag"
                   },
+                  "tasks_metadata": {
+                    "type": "object",
+                    "additionalProperties": {
+                      "$ref": "#/components/schemas/TaskMetadata"
+                    },
+                    "propertyNames": {
+                      "type": "string"
+                    }
+                  },
                   "tasks_output": {
                     "type": "object",
                     "additionalProperties": {
diff --git a/services/alphavantage-provider-service/Cargo.lock b/services/alphavantage-provider-service/Cargo.lock
index 57d9704..dbc4ba9 100644
--- a/services/alphavantage-provider-service/Cargo.lock
+++ b/services/alphavantage-provider-service/Cargo.lock
@@ -252,6 +252,16 @@ dependencies = [
  "syn 2.0.110",
 ]
 
+[[package]]
+name = "bstr"
+version = "1.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63044e1ae8e69f3b5a92c736ca6269b8d12fa7efe39bf34ddb06d102cf0e2cab"
+dependencies = [
+ "memchr",
+ "serde",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.19.0"
@@ -296,6 +306,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b97463e1064cb1b1c1384ad0a0b9c8abd0988e2a91f52606c80ef14aadb63e36"
 dependencies = [
  "find-msvc-tools",
+ "jobserver",
+ "libc",
  "shlex",
 ]
 
@@ -343,6 +355,7 @@ dependencies = [
  "tracing",
  "utoipa",
  "uuid",
+ "workflow-context",
 ]
 
 [[package]]
@@ -829,6 +842,34 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "git2"
+version = "0.18.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "232e6a7bfe35766bf715e55a88b39a700596c0ccfd88cd3680b4cdb40d66ef70"
+dependencies = [
+ "bitflags",
+ "libc",
+ "libgit2-sys",
+ "log",
+ "openssl-probe",
+ "openssl-sys",
+ "url",
+]
+
+[[package]]
+name = "globset"
+version = "0.4.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52dfc19153a48bde0cbd630453615c8151bce3a5adfac7a0aebfbf0a1e1f57e3"
+dependencies = [
+ "aho-corasick",
+ "bstr",
+ "log",
+ "regex-automata",
+ "regex-syntax",
+]
+
 [[package]]
 name = "h2"
 version = "0.4.12"
@@ -893,6 +934,12 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "http"
 version = "1.3.1"
@@ -1196,6 +1243,16 @@ version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
 
+[[package]]
+name = "jobserver"
+version = "0.1.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9afb3de4395d6b3e67a780b6de64b51c978ecf11cb9a462c66be7d4ca9039d33"
+dependencies = [
+ "getrandom 0.3.4",
+ "libc",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.82"
@@ -1229,6 +1286,46 @@ version = "0.2.177"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2874a2af47a2325c2001a6e6fad9b16a53b802102b528163885171cf92b15976"
 
+[[package]]
+name = "libgit2-sys"
+version = "0.16.2+1.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee4126d8b4ee5c9d9ea891dd875cfdc1e9d0950437179104b183d7d8a74d24e8"
+dependencies = [
+ "cc",
+ "libc",
+ "libssh2-sys",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+]
+
+[[package]]
+name = "libssh2-sys"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "220e4f05ad4a218192533b300327f5150e809b54c4ec83b5a1d91833601811b9"
+dependencies = [
+ "cc",
+ "libc",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+ "vcpkg",
+]
+
+[[package]]
+name = "libz-sys"
+version = "1.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "15d118bbf3771060e7311cc7bb0545b01d08a8b4a7de949198dec1fa0ca1c0f7"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.11.0"
@@ -1403,6 +1500,15 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
 
+[[package]]
+name = "openssl-src"
+version = "300.5.4+3.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a507b3792995dae9b0df8a1c1e3771e8418b7c2d9f0baeba32e6fe8b06c7cb72"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "openssl-sys"
 version = "0.9.111"
@@ -1411,6 +1517,7 @@ checksum = "82cab2d520aa75e3c58898289429321eb788c3106963d0dc886ec7a5f4adc321"
 dependencies = [
  "cc",
  "libc",
+ "openssl-src",
  "pkg-config",
  "vcpkg",
 ]
@@ -2112,6 +2219,15 @@ version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
 
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
+dependencies = [
+ "winapi-util",
+]
+
 [[package]]
 name = "schannel"
 version = "0.1.28"
@@ -3041,6 +3157,16 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
+name = "walkdir"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
+dependencies = [
+ "same-file",
+ "winapi-util",
+]
+
 [[package]]
 name = "want"
 version = "0.3.1"
@@ -3174,6 +3300,15 @@ dependencies = [
  "rustls-pki-types",
 ]
 
+[[package]]
+name = "winapi-util"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
+dependencies = [
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "windows-core"
 version = "0.62.2"
@@ -3415,6 +3550,22 @@ version = "0.46.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
 
+[[package]]
+name = "workflow-context"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "git2",
+ "globset",
+ "hex",
+ "regex",
+ "serde",
+ "serde_json",
+ "sha2",
+ "thiserror 1.0.69",
+ "walkdir",
+]
+
 [[package]]
 name = "writeable"
 version = "0.6.2"
diff --git a/services/alphavantage-provider-service/src/worker.rs b/services/alphavantage-provider-service/src/worker.rs
index a6c2f16..1f87262 100644
--- a/services/alphavantage-provider-service/src/worker.rs
+++ b/services/alphavantage-provider-service/src/worker.rs
@@ -414,6 +414,7 @@ mod integration_tests {
             symbol: CanonicalSymbol::new("IBM", &Market::US),
             market: "US".to_string(),
             template_id: Some("default".to_string()),
+            output_path: None,
         };
 
         // 4. NATS
diff --git a/services/api-gateway/Cargo.lock b/services/api-gateway/Cargo.lock
index d970ca9..d12d052 100644
--- a/services/api-gateway/Cargo.lock
+++ b/services/api-gateway/Cargo.lock
@@ -289,6 +289,16 @@ dependencies = [
  "syn 2.0.110",
 ]
 
+[[package]]
+name = "bstr"
+version = "1.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63044e1ae8e69f3b5a92c736ca6269b8d12fa7efe39bf34ddb06d102cf0e2cab"
+dependencies = [
+ "memchr",
+ "serde",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.19.0"
@@ -333,6 +343,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b97463e1064cb1b1c1384ad0a0b9c8abd0988e2a91f52606c80ef14aadb63e36"
 dependencies = [
  "find-msvc-tools",
+ "jobserver",
+ "libc",
  "shlex",
 ]
 
@@ -380,6 +392,7 @@ dependencies = [
  "tracing",
  "utoipa",
  "uuid",
+ "workflow-context",
 ]
 
 [[package]]
@@ -814,6 +827,34 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "git2"
+version = "0.18.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "232e6a7bfe35766bf715e55a88b39a700596c0ccfd88cd3680b4cdb40d66ef70"
+dependencies = [
+ "bitflags",
+ "libc",
+ "libgit2-sys",
+ "log",
+ "openssl-probe",
+ "openssl-sys",
+ "url",
+]
+
+[[package]]
+name = "globset"
+version = "0.4.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52dfc19153a48bde0cbd630453615c8151bce3a5adfac7a0aebfbf0a1e1f57e3"
+dependencies = [
+ "aho-corasick",
+ "bstr",
+ "log",
+ "regex-automata",
+ "regex-syntax",
+]
+
 [[package]]
 name = "h2"
 version = "0.4.12"
@@ -878,6 +919,12 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "http"
 version = "1.3.1"
@@ -1175,6 +1222,16 @@ version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
 
+[[package]]
+name = "jobserver"
+version = "0.1.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9afb3de4395d6b3e67a780b6de64b51c978ecf11cb9a462c66be7d4ca9039d33"
+dependencies = [
+ "getrandom 0.3.4",
+ "libc",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.82"
@@ -1208,6 +1265,34 @@ version = "0.2.177"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2874a2af47a2325c2001a6e6fad9b16a53b802102b528163885171cf92b15976"
 
+[[package]]
+name = "libgit2-sys"
+version = "0.16.2+1.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee4126d8b4ee5c9d9ea891dd875cfdc1e9d0950437179104b183d7d8a74d24e8"
+dependencies = [
+ "cc",
+ "libc",
+ "libssh2-sys",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+]
+
+[[package]]
+name = "libssh2-sys"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "220e4f05ad4a218192533b300327f5150e809b54c4ec83b5a1d91833601811b9"
+dependencies = [
+ "cc",
+ "libc",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "libz-rs-sys"
 version = "0.5.2"
@@ -1217,6 +1302,18 @@ dependencies = [
  "zlib-rs",
 ]
 
+[[package]]
+name = "libz-sys"
+version = "1.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "15d118bbf3771060e7311cc7bb0545b01d08a8b4a7de949198dec1fa0ca1c0f7"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.11.0"
@@ -1411,6 +1508,15 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
 
+[[package]]
+name = "openssl-src"
+version = "300.5.4+3.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a507b3792995dae9b0df8a1c1e3771e8418b7c2d9f0baeba32e6fe8b06c7cb72"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "openssl-sys"
 version = "0.9.111"
@@ -1419,6 +1525,7 @@ checksum = "82cab2d520aa75e3c58898289429321eb788c3106963d0dc886ec7a5f4adc321"
 dependencies = [
  "cc",
  "libc",
+ "openssl-src",
  "pkg-config",
  "vcpkg",
 ]
@@ -3459,6 +3566,22 @@ version = "0.46.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
 
+[[package]]
+name = "workflow-context"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "git2",
+ "globset",
+ "hex",
+ "regex",
+ "serde",
+ "serde_json",
+ "sha2",
+ "thiserror 1.0.69",
+ "walkdir",
+]
+
 [[package]]
 name = "writeable"
 version = "0.6.2"
diff --git a/services/api-gateway/Dockerfile b/services/api-gateway/Dockerfile
index c3a2de8..9492e24 100644
--- a/services/api-gateway/Dockerfile
+++ b/services/api-gateway/Dockerfile
@@ -1,10 +1,11 @@
 # 1. Build Stage
-FROM rust:1.90 as builder
+FROM rust:1.90-bookworm as builder
 
 WORKDIR /usr/src/app
 
 # Deterministic dependency caching without shipping a stub binary
 COPY ./services/common-contracts /usr/src/app/services/common-contracts
+COPY ./crates/workflow-context /usr/src/app/crates/workflow-context
 COPY ./services/api-gateway/Cargo.toml ./services/api-gateway/Cargo.lock* ./services/api-gateway/
 WORKDIR /usr/src/app/services/api-gateway
 # Copy the full source code and build the final binary (Debug mode for speed)
diff --git a/services/api-gateway/src/api.rs b/services/api-gateway/src/api.rs
index cee2f41..1f59abb 100644
--- a/services/api-gateway/src/api.rs
+++ b/services/api-gateway/src/api.rs
@@ -11,6 +11,7 @@ use common_contracts::config_models::{
     AnalysisTemplateSets, DataSourceProvider,
     DataSourcesConfig, LlmProvider, LlmProvidersConfig,
 };
+use common_contracts::dtos::{SessionDataDto, WorkflowHistoryDto, WorkflowHistorySummaryDto};
 use common_contracts::messages::GenerateReportCommand;
 use common_contracts::observability::{TaskProgress, ObservabilityTaskStatus};
 use common_contracts::registry::ProviderMetadata;
@@ -49,10 +50,10 @@ pub struct AnalysisRequest {
     pub template_id: String,
 }
 
-#[derive(Deserialize)]
-pub struct AnalysisResultQuery {
-    pub symbol: String,
-}
+// #[derive(Deserialize)]
+// pub struct AnalysisResultQuery {
+//     pub symbol: Option<String>,
+// }
 
 #[api_dto]
 pub struct SymbolResolveRequest {
@@ -66,6 +67,12 @@ pub struct SymbolResolveResponse {
     pub market: String,
 }
 
+#[derive(Deserialize)]
+pub struct WorkflowHistoryQuery {
+    pub symbol: Option<String>,
+    pub limit: Option<i64>,
+}
+
 // --- Dynamic Schema Structs (Replaced by Dynamic Registry) ---
 
 // Legacy endpoint /configs/data_sources/schema removed.
@@ -127,6 +134,19 @@ async fn mock_models() -> impl IntoResponse {
 
 use common_contracts::messages::{StartWorkflowCommand, SyncStateCommand, WorkflowEvent};
 
+/// [DELETE /v1/system/history]
+#[utoipa::path(
+    delete,
+    path = "/api/v1/system/history",
+    responses(
+        (status = 204, description = "History cleared")
+    )
+)]
+async fn clear_history(State(state): State<AppState>) -> Result<impl IntoResponse> {
+    state.persistence_client.clear_history().await?;
+    Ok(StatusCode::NO_CONTENT)
+}
+
 fn create_v1_router() -> Router<AppState> {
     Router::new()
         // Mock LLM for E2E
@@ -135,7 +155,10 @@ fn create_v1_router() -> Router<AppState> {
         // New Workflow API
         .route("/workflow/start", post(start_workflow))
         .route("/workflow/events/{request_id}", get(workflow_events_stream))
+        .route("/workflow/snapshot/{request_id}", get(get_workflow_snapshot))
         .route("/workflow/{request_id}/graph", get(get_workflow_graph_proxy))
+        // System
+        .route("/system/history", axum::routing::delete(clear_history))
         // Tools
         .route("/tools/resolve-symbol", post(resolve_symbol))
         // Legacy routes (marked for removal or compatibility)
@@ -146,7 +169,14 @@ fn create_v1_router() -> Router<AppState> {
             "/analysis-requests/{symbol}",
             post(trigger_analysis_generation),
         )
-        .route("/analysis-results", get(get_analysis_results_by_symbol))
+        .route(
+            "/history",
+            get(get_workflow_histories),
+        )
+        .route(
+            "/history/{request_id}",
+            get(get_workflow_history_by_id),
+        )
         .route("/companies/{symbol}/profile", get(get_company_profile))
         .route(
             "/market-data/financial-statements/{symbol}",
@@ -393,6 +423,35 @@ async fn start_workflow(
     ))
 }
 
+/// [GET /v1/workflow/snapshot/:request_id]
+#[utoipa::path(
+    get,
+    path = "/api/v1/workflow/snapshot/{request_id}",
+    params(
+        ("request_id" = Uuid, Path, description = "Workflow Request ID")
+    ),
+    responses(
+        (status = 200, description = "Workflow snapshot", body = SessionDataDto),
+        (status = 404, description = "Snapshot not found")
+    )
+)]
+async fn get_workflow_snapshot(
+    State(state): State<AppState>,
+    Path(request_id): Path<Uuid>,
+) -> Result<impl IntoResponse> {
+    let snapshots = state.persistence_client.get_session_data(request_id, None, None).await?;
+    
+    if let Some(snapshot) = snapshots.into_iter().next() {
+        Ok((StatusCode::OK, Json(snapshot)).into_response())
+    } else {
+        Ok((
+            StatusCode::NOT_FOUND,
+            Json(serde_json::json!({"error": "Snapshot not found"})),
+        )
+            .into_response())
+    }
+}
+
 /// [GET /v1/workflow/events/:request_id]
 /// SSE endpoint that proxies events from NATS to the frontend.
 async fn workflow_events_stream(
@@ -460,6 +519,9 @@ async fn proxy_get_session_data(
     State(_state): State<AppState>,
     Path(_request_id): Path<Uuid>,
 ) -> Result<impl IntoResponse> {
+    // Deprecated route, but if we wanted to implement it:
+    // let data = state.persistence_client.get_session_data(request_id, None, None).await?;
+    // Ok(Json(data))
     Ok((
         StatusCode::NOT_IMPLEMENTED,
         Json(serde_json::json!({"error": "Not implemented"})),
@@ -530,18 +592,55 @@ async fn trigger_analysis_generation(
     ))
 }
 
-/// [GET /v1/analysis-results?symbol=...]
-async fn get_analysis_results_by_symbol(
+// --- New Handlers for Workflow History ---
+
+/// [GET /v1/history]
+#[utoipa::path(
+    get,
+    path = "/api/v1/history",
+    params(
+        ("symbol" = Option<String>, Query, description = "Filter by symbol"),
+        ("limit" = Option<i64>, Query, description = "Limit number of results")
+    ),
+    responses(
+        (status = 200, description = "Workflow history summaries", body = Vec<WorkflowHistorySummaryDto>)
+    )
+)]
+async fn get_workflow_histories(
     State(state): State<AppState>,
-    Query(query): Query<AnalysisResultQuery>,
+    Query(query): Query<WorkflowHistoryQuery>,
 ) -> Result<impl IntoResponse> {
-    let results = state
+    let histories = state
         .persistence_client
-        .get_analysis_results(&query.symbol)
+        .get_workflow_histories(query.symbol.as_deref(), query.limit)
         .await?;
-    Ok(Json(results))
+    Ok(Json(histories))
 }
 
+/// [GET /v1/history/:request_id]
+#[utoipa::path(
+    get,
+    path = "/api/v1/history/{request_id}",
+    params(
+        ("request_id" = Uuid, Path, description = "Workflow Request ID")
+    ),
+    responses(
+        (status = 200, description = "Workflow history details", body = WorkflowHistoryDto),
+        (status = 404, description = "History not found")
+    )
+)]
+async fn get_workflow_history_by_id(
+    State(state): State<AppState>,
+    Path(request_id): Path<Uuid>,
+) -> Result<impl IntoResponse> {
+    let history = state
+        .persistence_client
+        .get_workflow_history_by_id(request_id)
+        .await?;
+    Ok(Json(history))
+}
+
+
 /// [GET /v1/companies/:symbol/profile]
 /// Queries the persisted company profile from the data-persistence-service.
 async fn get_company_profile(
@@ -1135,4 +1234,4 @@ async fn proxy_context_diff(
         StatusCode::from_u16(status.as_u16()).unwrap_or(StatusCode::INTERNAL_SERVER_ERROR),
         axum::body::Body::from(body),
     ))
-}
+}
\ No newline at end of file
diff --git a/services/api-gateway/src/openapi.rs b/services/api-gateway/src/openapi.rs
index 9198c20..22561a1 100644
--- a/services/api-gateway/src/openapi.rs
+++ b/services/api-gateway/src/openapi.rs
@@ -3,6 +3,7 @@ use common_contracts::messages::*;
 use common_contracts::observability::*;
 use common_contracts::config_models::*;
 use common_contracts::registry::{ProviderMetadata, ConfigFieldSchema, FieldType, ConfigKey};
+use common_contracts::dtos::{WorkflowHistoryDto, WorkflowHistorySummaryDto};
 use crate::api;
 
 #[derive(OpenApi)]
@@ -23,6 +24,8 @@ use crate::api;
         api::discover_models,
         api::discover_models_preview,
         api::get_registered_providers, // New endpoint
+        api::get_workflow_histories,
+        api::get_workflow_history_by_id,
     ),
     components(
         schemas(
@@ -62,6 +65,9 @@ use crate::api;
             api::TestConfigRequest,
             api::TestConnectionResponse,
             api::TestLlmConfigRequest,
+            // DTOs
+            WorkflowHistoryDto,
+            WorkflowHistorySummaryDto,
         )
     ),
     tags(
diff --git a/services/api-gateway/src/persistence.rs b/services/api-gateway/src/persistence.rs
index 5a3c16b..b107b4c 100644
--- a/services/api-gateway/src/persistence.rs
+++ b/services/api-gateway/src/persistence.rs
@@ -6,7 +6,8 @@ use crate::error::Result;
 use common_contracts::config_models::{
     AnalysisTemplateSets, DataSourcesConfig, LlmProvidersConfig,
 };
-use common_contracts::dtos::{CompanyProfileDto, TimeSeriesFinancialDto};
+use common_contracts::dtos::{CompanyProfileDto, TimeSeriesFinancialDto, WorkflowHistoryDto, WorkflowHistorySummaryDto};
+use uuid::Uuid;
 
 #[derive(Clone)]
 pub struct PersistenceClient {
@@ -54,12 +55,21 @@ impl PersistenceClient {
     #[allow(dead_code)]
     pub async fn get_session_data(
         &self,
-        request_id: uuid::Uuid,
+        request_id: Uuid,
+        provider: Option<&str>,
+        data_type: Option<&str>,
     ) -> Result<Vec<common_contracts::dtos::SessionDataDto>> {
         let url = format!("{}/session-data/{}", self.base_url, request_id);
-        let data = self
-            .client
-            .get(&url)
+        let mut req = self.client.get(&url);
+        
+        if let Some(p) = provider {
+            req = req.query(&[("provider", p)]);
+        }
+        if let Some(d) = data_type {
+            req = req.query(&[("data_type", d)]);
+        }
+
+        let data = req
             .send()
             .await?
             .error_for_status()?
@@ -68,20 +78,35 @@ impl PersistenceClient {
         Ok(data)
     }
 
-    pub async fn get_analysis_results(
-        &self,
-        symbol: &str,
-    ) -> Result<Vec<common_contracts::dtos::AnalysisResultDto>> {
-        let url = format!("{}/analysis-results?symbol={}", self.base_url, symbol);
-        let results = self
-            .client
-            .get(&url)
+    pub async fn get_workflow_histories(&self, symbol: Option<&str>, limit: Option<i64>) -> Result<Vec<WorkflowHistorySummaryDto>> {
+        let url = format!("{}/history", self.base_url);
+        let mut req = self.client.get(&url);
+        if let Some(s) = symbol {
+            req = req.query(&[("symbol", s)]);
+        }
+        if let Some(l) = limit {
+            req = req.query(&[("limit", l)]);
+        }
+        let resp = req.send().await?.error_for_status()?;
+        let results = resp.json().await?;
+        Ok(results)
+    }
+
+    pub async fn get_workflow_history_by_id(&self, request_id: Uuid) -> Result<WorkflowHistoryDto> {
+        let url = format!("{}/history/{}", self.base_url, request_id);
+        let resp = self.client.get(&url).send().await?.error_for_status()?;
+        let result = resp.json().await?;
+        Ok(result)
+    }
+
+    pub async fn clear_history(&self) -> Result<()> {
+        let url = format!("{}/system/history", self.base_url);
+        self.client
+            .delete(&url)
             .send()
             .await?
-            .error_for_status()?
-            .json::<Vec<common_contracts::dtos::AnalysisResultDto>>()
-            .await?;
-        Ok(results)
+            .error_for_status()?;
+        Ok(())
     }
 
     // --- Config Methods ---
diff --git a/services/common-contracts/Cargo.lock b/services/common-contracts/Cargo.lock
index 2d8eab8..3b83478 100644
--- a/services/common-contracts/Cargo.lock
+++ b/services/common-contracts/Cargo.lock
@@ -228,6 +228,16 @@ dependencies = [
  "syn 2.0.110",
 ]
 
+[[package]]
+name = "bstr"
+version = "1.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63044e1ae8e69f3b5a92c736ca6269b8d12fa7efe39bf34ddb06d102cf0e2cab"
+dependencies = [
+ "memchr",
+ "serde",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.19.0"
@@ -278,6 +288,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b97463e1064cb1b1c1384ad0a0b9c8abd0988e2a91f52606c80ef14aadb63e36"
 dependencies = [
  "find-msvc-tools",
+ "jobserver",
+ "libc",
  "shlex",
 ]
 
@@ -326,6 +338,7 @@ dependencies = [
  "tracing",
  "utoipa",
  "uuid",
+ "workflow-context",
 ]
 
 [[package]]
@@ -750,6 +763,34 @@ dependencies = [
  "wasip2",
 ]
 
+[[package]]
+name = "git2"
+version = "0.18.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "232e6a7bfe35766bf715e55a88b39a700596c0ccfd88cd3680b4cdb40d66ef70"
+dependencies = [
+ "bitflags",
+ "libc",
+ "libgit2-sys",
+ "log",
+ "openssl-probe",
+ "openssl-sys",
+ "url",
+]
+
+[[package]]
+name = "globset"
+version = "0.4.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52dfc19153a48bde0cbd630453615c8151bce3a5adfac7a0aebfbf0a1e1f57e3"
+dependencies = [
+ "aho-corasick",
+ "bstr",
+ "log",
+ "regex-automata",
+ "regex-syntax",
+]
+
 [[package]]
 name = "h2"
 version = "0.4.12"
@@ -1132,6 +1173,16 @@ version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
 
+[[package]]
+name = "jobserver"
+version = "0.1.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9afb3de4395d6b3e67a780b6de64b51c978ecf11cb9a462c66be7d4ca9039d33"
+dependencies = [
+ "getrandom 0.3.4",
+ "libc",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.82"
@@ -1157,6 +1208,20 @@ version = "0.2.177"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2874a2af47a2325c2001a6e6fad9b16a53b802102b528163885171cf92b15976"
 
+[[package]]
+name = "libgit2-sys"
+version = "0.16.2+1.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee4126d8b4ee5c9d9ea891dd875cfdc1e9d0950437179104b183d7d8a74d24e8"
+dependencies = [
+ "cc",
+ "libc",
+ "libssh2-sys",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+]
+
 [[package]]
 name = "libm"
 version = "0.2.15"
@@ -1184,6 +1249,32 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "libssh2-sys"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "220e4f05ad4a218192533b300327f5150e809b54c4ec83b5a1d91833601811b9"
+dependencies = [
+ "cc",
+ "libc",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+ "vcpkg",
+]
+
+[[package]]
+name = "libz-sys"
+version = "1.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "15d118bbf3771060e7311cc7bb0545b01d08a8b4a7de949198dec1fa0ca1c0f7"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.11.0"
@@ -1381,6 +1472,15 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
 
+[[package]]
+name = "openssl-src"
+version = "300.5.4+3.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a507b3792995dae9b0df8a1c1e3771e8418b7c2d9f0baeba32e6fe8b06c7cb72"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "openssl-sys"
 version = "0.9.111"
@@ -1389,6 +1489,7 @@ checksum = "82cab2d520aa75e3c58898289429321eb788c3106963d0dc886ec7a5f4adc321"
 dependencies = [
  "cc",
  "libc",
+ "openssl-src",
  "pkg-config",
  "vcpkg",
 ]
@@ -1901,6 +2002,15 @@ version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
 
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
+dependencies = [
+ "winapi-util",
+]
+
 [[package]]
 name = "schannel"
 version = "0.1.28"
@@ -2962,6 +3072,16 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
+name = "walkdir"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
+dependencies = [
+ "same-file",
+ "winapi-util",
+]
+
 [[package]]
 name = "want"
 version = "0.3.1"
@@ -3088,6 +3208,15 @@ dependencies = [
  "wasite",
 ]
 
+[[package]]
+name = "winapi-util"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
+dependencies = [
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "windows-core"
 version = "0.62.2"
@@ -3395,6 +3524,22 @@ version = "0.46.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
 
+[[package]]
+name = "workflow-context"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "git2",
+ "globset",
+ "hex",
+ "regex",
+ "serde",
+ "serde_json",
+ "sha2",
+ "thiserror 1.0.69",
+ "walkdir",
+]
+
 [[package]]
 name = "writeable"
 version = "0.6.2"
diff --git a/services/common-contracts/Cargo.toml b/services/common-contracts/Cargo.toml
index 6776b88..761646e 100644
--- a/services/common-contracts/Cargo.toml
+++ b/services/common-contracts/Cargo.toml
@@ -30,3 +30,4 @@ service_kit = { version = "0.1.2" }
 reqwest = { version = "0.12", features = ["json"] }
 tokio = { version = "1", features = ["time", "sync", "macros"] }
 log = "0.4"
+workflow-context = { path = "../../crates/workflow-context" }
diff --git a/services/common-contracts/src/data_formatting.rs b/services/common-contracts/src/data_formatting.rs
new file mode 100644
index 0000000..15010ba
--- /dev/null
+++ b/services/common-contracts/src/data_formatting.rs
@@ -0,0 +1,115 @@
+use serde_json::Value;
+use std::collections::BTreeSet;
+
+/// Formats a JSON Value into a Markdown string with intelligent rendering strategies.
+pub fn format_data(data: &Value) -> String {
+    match data {
+        Value::Object(map) => {
+            // Heuristic: If it looks like a "summary" object with a "records" array, 
+            // likely the "records" are the main content.
+            if map.len() <= 3 && map.contains_key("records") && map["records"].is_array() {
+                let mut md = String::new();
+                // Render non-records fields first
+                for (k, v) in map {
+                    if k != "records" {
+                        md.push_str(&format!("**{}:** {}\n\n", k, format_primitive(v)));
+                    }
+                }
+                md.push_str(&format_table(&map["records"]));
+                return md;
+            }
+
+            // Default Object rendering
+            let mut md = String::new();
+            for (k, v) in map {
+                md.push_str(&format!("### {}\n\n", k));
+                md.push_str(&format_data(v));
+                md.push_str("\n\n");
+            }
+            md
+        },
+        Value::Array(arr) => {
+            if arr.is_empty() {
+                return "_No Data_".to_string();
+            }
+            // Check if array of objects (Table candidate)
+            if arr.iter().all(|v| v.is_object()) {
+                return format_table(data);
+            }
+            // Simple list
+            let mut md = String::new();
+            for item in arr {
+                md.push_str(&format!("- {}\n", format_primitive(item)));
+            }
+            md
+        },
+        _ => format_primitive(data),
+    }
+}
+
+fn format_primitive(v: &Value) -> String {
+    match v {
+        Value::String(s) => s.clone(),
+        Value::Number(n) => n.to_string(),
+        Value::Bool(b) => b.to_string(),
+        Value::Null => "null".to_string(),
+        _ => format!("`{}`", v),
+    }
+}
+
+fn format_table(data: &Value) -> String {
+    let arr = data.as_array().unwrap();
+    if arr.is_empty() {
+        return "".to_string();
+    }
+
+    // Collect all unique keys for headers
+    let mut keys: BTreeSet<String> = BTreeSet::new();
+    for item in arr {
+        if let Value::Object(map) = item {
+            for k in map.keys() {
+                keys.insert(k.clone());
+            }
+        }
+    }
+
+    if keys.is_empty() {
+        return "".to_string();
+    }
+
+    let header_list: Vec<String> = keys.into_iter().collect();
+    
+    let mut md = String::new();
+    
+    // Header Row
+    md.push_str("| ");
+    md.push_str(&header_list.join(" | "));
+    md.push_str(" |\n");
+
+    // Separator Row
+    md.push_str("|");
+    for _ in 0..header_list.len() {
+        md.push_str(" --- |");
+    }
+    md.push_str("\n");
+
+    // Data Rows
+    for item in arr {
+        let map = item.as_object().unwrap();
+        md.push_str("|");
+        for key in &header_list {
+            let val = map.get(key).unwrap_or(&Value::Null);
+            // Truncate long values for table
+            let mut val_str = format_primitive(val);
+            val_str = val_str.replace('\n', " "); // No newlines in table cells
+            if val_str.len() > 50 {
+                val_str = format!("{}...", &val_str[0..47]);
+            }
+            md.push_str(&format!(" {} |", val_str));
+        }
+        md.push_str("\n");
+    }
+
+    md
+}
+
diff --git a/services/common-contracts/src/dtos.rs b/services/common-contracts/src/dtos.rs
index 5b4a19d..0adcef9 100644
--- a/services/common-contracts/src/dtos.rs
+++ b/services/common-contracts/src/dtos.rs
@@ -49,30 +49,52 @@ pub struct DailyMarketDataBatchDto {
     pub records: Vec<DailyMarketDataDto>,
 }
 
-// Analysis Results API DTOs (NEW)
-#[api_dto]
-pub struct NewAnalysisResult {
-    pub request_id: Uuid,
-    pub symbol: String,
-    pub template_id: String,
-    pub module_id: String,
-    pub content: String,
-    pub meta_data: JsonValue,
-}
 
-/// Represents a persisted analysis result read from the database.
+// Analysis Results API DTOs (REMOVED)
+// #[api_dto]
+// pub struct NewAnalysisResult { ... }
+// #[api_dto]
+// pub struct AnalysisResultDto { ... }
+
+// Workflow History DTOs (NEW)
 #[api_dto]
-pub struct AnalysisResultDto {
-    pub id: Uuid,
+pub struct WorkflowHistoryDto {
     pub request_id: Uuid,
     pub symbol: String,
-    pub template_id: String,
-    pub module_id: String,
-    pub content: String,
-    pub meta_data: JsonValue,
+    pub market: String,
+    pub template_id: Option<String>,
+    pub status: String,
+    pub start_time: chrono::DateTime<chrono::Utc>,
+    pub end_time: Option<chrono::DateTime<chrono::Utc>>,
+    pub snapshot_data: JsonValue,
     pub created_at: chrono::DateTime<chrono::Utc>,
 }
 
+#[api_dto]
+pub struct NewWorkflowHistory {
+    pub request_id: Uuid,
+    pub symbol: String,
+    pub market: String,
+    pub template_id: Option<String>,
+    pub status: String,
+    pub start_time: chrono::DateTime<chrono::Utc>,
+    pub end_time: Option<chrono::DateTime<chrono::Utc>>,
+    pub snapshot_data: JsonValue,
+}
+
+#[api_dto]
+pub struct WorkflowHistorySummaryDto {
+    pub request_id: Uuid,
+    pub symbol: String,
+    pub market: String,
+    pub template_id: Option<String>,
+    pub status: String,
+    pub start_time: chrono::DateTime<chrono::Utc>,
+    pub end_time: Option<chrono::DateTime<chrono::Utc>>,
+}
+
+
+
 
 // Realtime Quotes DTOs
 #[api_dto]
diff --git a/services/common-contracts/src/lib.rs b/services/common-contracts/src/lib.rs
index 3c5ec75..8360736 100644
--- a/services/common-contracts/src/lib.rs
+++ b/services/common-contracts/src/lib.rs
@@ -14,3 +14,6 @@ pub mod abstraction;
 pub mod workflow_harness; // Export the harness
 pub mod workflow_types;
 pub mod configs;
+pub mod data_formatting;
+pub mod workflow_node;
+pub mod workflow_runner;
diff --git a/services/common-contracts/src/messages.rs b/services/common-contracts/src/messages.rs
index 59ed5e2..349d426 100644
--- a/services/common-contracts/src/messages.rs
+++ b/services/common-contracts/src/messages.rs
@@ -87,6 +87,18 @@ impl SubjectMessage for GenerateReportCommand {
 
 // --- Events ---
 
+/// Metadata produced by a task execution.
+#[api_dto]
+pub struct TaskMetadata {
+    /// The primary output file path (e.g. analysis report)
+    pub output_path: Option<String>,
+    /// The execution trace log path
+    pub execution_log_path: Option<String>,
+    /// Additional arbitrary metadata
+    #[serde(flatten)]
+    pub extra: HashMap<String, serde_json::Value>,
+}
+
 // Topic: events.workflow.{request_id}
 /// Unified event stream for frontend consumption.
 #[api_dto]
@@ -145,7 +157,8 @@ pub enum WorkflowEvent {
         timestamp: i64,
         task_graph: WorkflowDag,
         tasks_status: HashMap<String, TaskStatus>, // 当前所有任务的最新状态
-        tasks_output: HashMap<String, Option<String>> // (可选) 已完成任务的关键输出摘要
+        tasks_output: HashMap<String, Option<String>>, // (可选) 已完成任务的关键输出摘要 (commit hash)
+        tasks_metadata: HashMap<String, TaskMetadata> // (New) 任务的关键元数据
     }
 }
 
diff --git a/services/common-contracts/src/models.rs b/services/common-contracts/src/models.rs
index 190b0c6..c8004df 100644
--- a/services/common-contracts/src/models.rs
+++ b/services/common-contracts/src/models.rs
@@ -36,16 +36,8 @@ pub struct DailyMarketData {
     pub total_mv: Option<rust_decimal::Decimal>,
 }
 
-#[derive(Debug, Clone, FromRow)]
-pub struct AnalysisResult {
-    pub id: Uuid,
-    pub symbol: String,
-    pub module_id: String,
-    pub generated_at: DateTime<Utc>,
-    pub model_name: Option<String>,
-    pub content: String,
-    pub meta_data: Option<JsonValue>,
-}
+// AnalysisResult struct removed as it is deprecated and table is dropped.
+
 
 #[derive(Debug, Clone, FromRow)]
 pub struct SystemConfig {
diff --git a/services/common-contracts/src/persistence_client.rs b/services/common-contracts/src/persistence_client.rs
index e4cbb67..5ec72aa 100644
--- a/services/common-contracts/src/persistence_client.rs
+++ b/services/common-contracts/src/persistence_client.rs
@@ -1,6 +1,7 @@
 use crate::dtos::{
     SessionDataDto, ProviderCacheDto, CompanyProfileDto, 
-    TimeSeriesFinancialBatchDto, TimeSeriesFinancialDto, ProviderStatusDto
+    TimeSeriesFinancialBatchDto, TimeSeriesFinancialDto, ProviderStatusDto,
+    NewWorkflowHistory, WorkflowHistoryDto, WorkflowHistorySummaryDto
 };
 use crate::config_models::{
     DataSourcesConfig, LlmProvidersConfig, AnalysisTemplateSets
@@ -23,6 +24,41 @@ impl PersistenceClient {
         }
     }
 
+    // --- Workflow History (NEW) ---
+
+    pub async fn create_workflow_history(&self, dto: &NewWorkflowHistory) -> Result<WorkflowHistoryDto> {
+        let url = format!("{}/history", self.base_url);
+        let resp = self.client
+            .post(&url)
+            .json(dto)
+            .send()
+            .await?
+            .error_for_status()?;
+        let result = resp.json().await?;
+        Ok(result)
+    }
+
+    pub async fn get_workflow_histories(&self, symbol: Option<&str>, limit: Option<i64>) -> Result<Vec<WorkflowHistorySummaryDto>> {
+        let url = format!("{}/history", self.base_url);
+        let mut req = self.client.get(&url);
+        if let Some(s) = symbol {
+            req = req.query(&[("symbol", s)]);
+        }
+        if let Some(l) = limit {
+            req = req.query(&[("limit", l)]);
+        }
+        let resp = req.send().await?.error_for_status()?;
+        let results = resp.json().await?;
+        Ok(results)
+    }
+
+    pub async fn get_workflow_history_by_id(&self, request_id: Uuid) -> Result<WorkflowHistoryDto> {
+        let url = format!("{}/history/{}", self.base_url, request_id);
+        let resp = self.client.get(&url).send().await?.error_for_status()?;
+        let result = resp.json().await?;
+        Ok(result)
+    }
+
     // --- Session Data ---
 
     pub async fn insert_session_data(&self, dto: &SessionDataDto) -> Result<()> {
diff --git a/services/common-contracts/src/workflow_node.rs b/services/common-contracts/src/workflow_node.rs
new file mode 100644
index 0000000..162e549
--- /dev/null
+++ b/services/common-contracts/src/workflow_node.rs
@@ -0,0 +1,87 @@
+use async_trait::async_trait;
+use anyhow::Result;
+use serde_json::Value;
+use std::collections::HashMap;
+
+/// Context provided to the node execution
+pub struct NodeContext {
+    pub request_id: String,
+    pub base_commit: String,
+    pub root_path: String,
+}
+
+impl NodeContext {
+    pub fn new(request_id: String, base_commit: String, root_path: String) -> Self {
+        Self {
+            request_id,
+            base_commit,
+            root_path,
+        }
+    }
+}
+
+/// Content of an artifact
+pub enum ArtifactContent {
+    Json(Value),
+    Text(String),
+    Bytes(Vec<u8>),
+}
+
+impl From<Value> for ArtifactContent {
+    fn from(v: Value) -> Self {
+        ArtifactContent::Json(v)
+    }
+}
+
+impl From<String> for ArtifactContent {
+    fn from(s: String) -> Self {
+        ArtifactContent::Text(s)
+    }
+}
+
+impl ArtifactContent {
+    pub fn as_bytes(&self) -> Result<Vec<u8>> {
+        match self {
+            ArtifactContent::Json(v) => Ok(serde_json::to_vec_pretty(v)?),
+            ArtifactContent::Text(s) => Ok(s.as_bytes().to_vec()),
+            ArtifactContent::Bytes(b) => Ok(b.clone()),
+        }
+    }
+}
+
+/// Result of the node execution
+pub struct NodeExecutionResult {
+    /// Artifacts to be saved to VGCS.
+    /// Key: Relative file path (e.g., "profile.json")
+    /// Value: Content
+    pub artifacts: HashMap<String, ArtifactContent>,
+    
+    /// Metadata summary for the task result event
+    pub meta_summary: Option<Value>,
+}
+
+#[async_trait]
+pub trait WorkflowNode: Send + Sync {
+    /// Unique identifier/type of the node (e.g., "yfinance", "analysis")
+    fn node_type(&self) -> &str;
+
+    /// Core execution logic
+    /// 
+    /// # Arguments
+    /// * `context` - Context including request_id, base_commit, etc.
+    /// * `config` - Task configuration (e.g., symbol, market)
+    async fn execute(
+        &self, 
+        context: &NodeContext, 
+        config: &Value
+    ) -> Result<NodeExecutionResult>;
+
+    /// Render the report from the execution result
+    /// 
+    /// This method is synchronous as data should be available in the result.
+    fn render_report(
+        &self, 
+        result: &NodeExecutionResult
+    ) -> Result<String>;
+}
+
diff --git a/services/common-contracts/src/workflow_runner.rs b/services/common-contracts/src/workflow_runner.rs
new file mode 100644
index 0000000..b24c197
--- /dev/null
+++ b/services/common-contracts/src/workflow_runner.rs
@@ -0,0 +1,154 @@
+use std::sync::Arc;
+use anyhow::Result;
+use tracing::{info, error};
+use async_nats::Client;
+
+use crate::workflow_types::{WorkflowTaskCommand, WorkflowTaskEvent, TaskStatus, TaskResult};
+use crate::messages::WorkflowEvent as CommonWorkflowEvent;
+use crate::workflow_node::{WorkflowNode, NodeContext};
+use crate::subjects::SubjectMessage;
+use workflow_context::WorkerContext;
+
+pub struct WorkflowNodeRunner {
+    nats: Client,
+}
+
+impl WorkflowNodeRunner {
+    pub fn new(nats: Client) -> Self {
+        Self { nats }
+    }
+
+    pub async fn run<N>(&self, node: Arc<N>, cmd: WorkflowTaskCommand) -> Result<()> 
+    where 
+        N: WorkflowNode + 'static 
+    {
+        let task_id = cmd.task_id.clone();
+        info!("Starting node execution: type={}, task_id={}", node.node_type(), task_id);
+
+        // 1. Prepare Context
+        let root_path = cmd.storage.root_path.clone();
+        let req_id = cmd.request_id.to_string();
+        let base_commit = cmd.context.base_commit.clone().unwrap_or_default();
+        
+        let context = NodeContext::new(req_id.clone(), base_commit.clone(), root_path.clone());
+
+        // 2. Execute Node Logic (Async)
+        let exec_result = match node.execute(&context, &cmd.config).await {
+            Ok(res) => res,
+            Err(e) => {
+                return self.handle_failure(&cmd, &e.to_string()).await;
+            }
+        };
+
+        // 3. Render Report (Sync)
+        let report_md = match node.render_report(&exec_result) {
+            Ok(md) => md,
+            Err(e) => {
+                return self.handle_failure(&cmd, &format!("Report rendering failed: {}", e)).await;
+            }
+        };
+
+        // 4. VGCS Operations (Blocking)
+        let node_clone = node.clone();
+        let task_id_clone = task_id.clone();
+        let base_commit_clone = base_commit.clone();
+        let root_path_clone = root_path.clone();
+        let req_id_clone = req_id.clone();
+        let exec_result_artifacts = exec_result.artifacts;
+        let report_md_clone = report_md.clone();
+        let symbol = cmd.config.get("symbol").and_then(|s| s.as_str()).unwrap_or("unknown").to_string();
+
+        // We also want to generate an execution log (basic one for now)
+        // In future, we might want to capture logs during execute()
+        let execution_log = format!("# Execution Log for {}\n\nTask ID: {}\nNode Type: {}\nStatus: Success\n", task_id, task_id, node.node_type());
+
+        let commit_res = tokio::task::spawn_blocking(move || -> Result<String> {
+            let mut ctx = WorkerContext::new(&root_path_clone, &req_id_clone, &base_commit_clone);
+            
+            // Define output directory convention
+            let base_dir = format!("raw/{}/{}", node_clone.node_type(), symbol);
+
+            // Write Artifacts
+            for (filename, content) in exec_result_artifacts {
+                let full_path = format!("{}/{}", base_dir, filename);
+                let bytes = content.as_bytes()?;
+                // WorkerContext write_file takes &str for now
+                ctx.write_file(&full_path, std::str::from_utf8(&bytes).unwrap_or(""))?; 
+            }
+
+            // Write Report
+            let report_path = format!("{}/report.md", base_dir);
+            ctx.write_file(&report_path, &report_md_clone)?;
+
+            // Write Execution Log
+            let log_path = format!("{}/_execution.md", base_dir);
+            ctx.write_file(&log_path, &execution_log)?;
+
+            // Commit
+            let commit_msg = format!("Task {} ({}) completed", task_id_clone, node_clone.node_type());
+            let new_commit = ctx.commit(&commit_msg)?;
+            
+            Ok(new_commit)
+        }).await;
+
+        let new_commit = match commit_res {
+             Ok(Ok(commit)) => commit,
+             Ok(Err(e)) => return self.handle_failure(&cmd, &format!("VGCS error: {}", e)).await,
+             Err(e) => return self.handle_failure(&cmd, &format!("Task join error: {}", e)).await,
+        };
+
+        // 5. Publish Stream Update
+        let stream_event = CommonWorkflowEvent::TaskStreamUpdate {
+            task_id: task_id.clone(),
+            content_delta: report_md.clone(),
+            index: 0,
+        };
+        self.publish_common(&cmd.request_id, stream_event).await?;
+
+        // 6. Publish Completion Event
+        let event = WorkflowTaskEvent {
+            request_id: cmd.request_id,
+            task_id: task_id,
+            status: TaskStatus::Completed,
+            result: Some(TaskResult {
+                new_commit: Some(new_commit),
+                error: None,
+                summary: exec_result.meta_summary,
+            }),
+        };
+        self.publish_event(event).await?;
+
+        info!("Task {} finished successfully", cmd.task_id);
+        Ok(())
+    }
+
+    async fn handle_failure(&self, cmd: &WorkflowTaskCommand, error_msg: &str) -> Result<()> {
+        error!("Task {} failed: {}", cmd.task_id, error_msg);
+        let event = WorkflowTaskEvent {
+            request_id: cmd.request_id,
+            task_id: cmd.task_id.clone(),
+            status: TaskStatus::Failed,
+            result: Some(TaskResult {
+                new_commit: None,
+                error: Some(error_msg.to_string()),
+                summary: None,
+            }),
+        };
+        self.publish_event(event).await
+    }
+
+    async fn publish_event(&self, event: WorkflowTaskEvent) -> Result<()> {
+        let subject = event.subject().to_string();
+        let payload = serde_json::to_vec(&event)?;
+        self.nats.publish(subject, payload.into()).await?;
+        Ok(())
+    }
+
+    async fn publish_common(&self, req_id: &uuid::Uuid, event: CommonWorkflowEvent) -> Result<()> {
+        let subject = crate::subjects::NatsSubject::WorkflowProgress(*req_id).to_string();
+        let payload = serde_json::to_vec(&event)?;
+        self.nats.publish(subject, payload.into()).await?;
+        Ok(())
+    }
+}
+
diff --git a/services/data-persistence-service/Cargo.lock b/services/data-persistence-service/Cargo.lock
index 062bcb2..8e9f970 100644
--- a/services/data-persistence-service/Cargo.lock
+++ b/services/data-persistence-service/Cargo.lock
@@ -284,6 +284,16 @@ dependencies = [
  "syn 2.0.110",
 ]
 
+[[package]]
+name = "bstr"
+version = "1.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63044e1ae8e69f3b5a92c736ca6269b8d12fa7efe39bf34ddb06d102cf0e2cab"
+dependencies = [
+ "memchr",
+ "serde",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.19.0"
@@ -334,6 +344,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b97463e1064cb1b1c1384ad0a0b9c8abd0988e2a91f52606c80ef14aadb63e36"
 dependencies = [
  "find-msvc-tools",
+ "jobserver",
+ "libc",
  "shlex",
 ]
 
@@ -382,6 +394,7 @@ dependencies = [
  "tracing",
  "utoipa",
  "uuid",
+ "workflow-context",
 ]
 
 [[package]]
@@ -929,6 +942,34 @@ dependencies = [
  "wasip2",
 ]
 
+[[package]]
+name = "git2"
+version = "0.18.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "232e6a7bfe35766bf715e55a88b39a700596c0ccfd88cd3680b4cdb40d66ef70"
+dependencies = [
+ "bitflags",
+ "libc",
+ "libgit2-sys",
+ "log",
+ "openssl-probe",
+ "openssl-sys",
+ "url",
+]
+
+[[package]]
+name = "globset"
+version = "0.4.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52dfc19153a48bde0cbd630453615c8151bce3a5adfac7a0aebfbf0a1e1f57e3"
+dependencies = [
+ "aho-corasick",
+ "bstr",
+ "log",
+ "regex-automata",
+ "regex-syntax",
+]
+
 [[package]]
 name = "h2"
 version = "0.4.12"
@@ -1324,6 +1365,16 @@ version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
 
+[[package]]
+name = "jobserver"
+version = "0.1.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9afb3de4395d6b3e67a780b6de64b51c978ecf11cb9a462c66be7d4ca9039d33"
+dependencies = [
+ "getrandom 0.3.4",
+ "libc",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.82"
@@ -1349,6 +1400,20 @@ version = "0.2.177"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2874a2af47a2325c2001a6e6fad9b16a53b802102b528163885171cf92b15976"
 
+[[package]]
+name = "libgit2-sys"
+version = "0.16.2+1.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee4126d8b4ee5c9d9ea891dd875cfdc1e9d0950437179104b183d7d8a74d24e8"
+dependencies = [
+ "cc",
+ "libc",
+ "libssh2-sys",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+]
+
 [[package]]
 name = "libm"
 version = "0.2.15"
@@ -1376,6 +1441,20 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "libssh2-sys"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "220e4f05ad4a218192533b300327f5150e809b54c4ec83b5a1d91833601811b9"
+dependencies = [
+ "cc",
+ "libc",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "libz-rs-sys"
 version = "0.5.2"
@@ -1385,6 +1464,18 @@ dependencies = [
  "zlib-rs",
 ]
 
+[[package]]
+name = "libz-sys"
+version = "1.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "15d118bbf3771060e7311cc7bb0545b01d08a8b4a7de949198dec1fa0ca1c0f7"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.11.0"
@@ -1620,6 +1711,15 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
 
+[[package]]
+name = "openssl-src"
+version = "300.5.4+3.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a507b3792995dae9b0df8a1c1e3771e8418b7c2d9f0baeba32e6fe8b06c7cb72"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "openssl-sys"
 version = "0.9.111"
@@ -1628,6 +1728,7 @@ checksum = "82cab2d520aa75e3c58898289429321eb788c3106963d0dc886ec7a5f4adc321"
 dependencies = [
  "cc",
  "libc",
+ "openssl-src",
  "pkg-config",
  "vcpkg",
 ]
@@ -3895,6 +3996,22 @@ version = "0.46.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
 
+[[package]]
+name = "workflow-context"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "git2",
+ "globset",
+ "hex",
+ "regex",
+ "serde",
+ "serde_json",
+ "sha2",
+ "thiserror 1.0.69",
+ "walkdir",
+]
+
 [[package]]
 name = "writeable"
 version = "0.6.2"
diff --git a/services/data-persistence-service/Dockerfile b/services/data-persistence-service/Dockerfile
index e4c1e9c..799685f 100644
--- a/services/data-persistence-service/Dockerfile
+++ b/services/data-persistence-service/Dockerfile
@@ -6,6 +6,7 @@ FROM chef AS planner
 WORKDIR /app/services/data-persistence-service
 # 仅复制必要的 Cargo 清单，避免大体积上下文
 COPY services/common-contracts/Cargo.toml /app/services/common-contracts/Cargo.toml
+COPY crates/workflow-context/Cargo.toml /app/crates/workflow-context/Cargo.toml
 COPY services/data-persistence-service/Cargo.toml /app/services/data-persistence-service/Cargo.toml
 # Copy service_kit mirror for dependency resolution
 COPY ref/service_kit_mirror /app/ref/service_kit_mirror
@@ -19,6 +20,7 @@ COPY --from=planner /app/services/data-persistence-service/recipe.json /app/serv
 # 为了支持 path 依赖，先拷贝依赖源码再 cook
 ENV FORCE_REBUILD=2
 COPY services/common-contracts /app/services/common-contracts
+COPY crates/workflow-context /app/crates/workflow-context
 # Copy service_kit mirror again for build
 COPY ref/service_kit_mirror /app/ref/service_kit_mirror
 
diff --git a/services/data-persistence-service/src/api/analysis.rs b/services/data-persistence-service/src/api/analysis.rs
deleted file mode 100644
index b40f6d6..0000000
--- a/services/data-persistence-service/src/api/analysis.rs
+++ /dev/null
@@ -1,110 +0,0 @@
-use crate::models::AnalysisResult;
-use crate::{AppState, ServerError};
-use axum::{
-    extract::{Path, Query, State},
-    http::StatusCode,
-    response::IntoResponse,
-    Json,
-};
-use common_contracts::dtos::{AnalysisResultDto, NewAnalysisResult};
-use serde::Deserialize;
-use service_kit::api;
-use tracing::{instrument, error};
-use anyhow::Error as AnyhowError;
-use uuid::Uuid;
-
-#[derive(Debug, Deserialize, utoipa::IntoParams, utoipa::ToSchema)]
-pub struct AnalysisQuery {
-    pub symbol: String,
-    pub module_id: Option<String>,
-}
-
-/// Creates a new analysis result and returns the created record.
-#[instrument(skip(state, payload), fields(request_id = %payload.request_id, symbol = %payload.symbol, module_id = %payload.module_id))]
-#[api(POST, "/api/v1/analysis-results")]
-pub async fn create_analysis_result(
-    State(state): State<AppState>,
-    Json(payload): Json<NewAnalysisResult>,
-) -> Result<impl IntoResponse, ServerError> {
-    let result = crate::db::create_analysis_result(state.pool(), &payload)
-        .await
-        .map_err(|e| {
-            error!("Database error inserting analysis result: {}", e);
-            AnyhowError::from(e)
-        })?;
-
-    let dto = AnalysisResultDto {
-        id: result.id,
-        request_id: result.request_id,
-        symbol: result.symbol,
-        template_id: result.template_id,
-        module_id: result.module_id,
-        content: result.content,
-        meta_data: result.meta_data,
-        created_at: result.created_at,
-    };
-
-    Ok((StatusCode::CREATED, Json(dto)))
-}
-
-/// Retrieves all analysis results for a given symbol.
-#[instrument(skip(state))]
-#[api(GET, "/api/v1/analysis-results", output(list = "AnalysisResultDto"))]
-pub async fn get_analysis_results(
-    State(state): State<AppState>,
-    Query(query): Query<AnalysisQuery>,
-) -> Result<Json<Vec<AnalysisResultDto>>, ServerError> {
-    let results = crate::db::get_analysis_results(state.pool(), &query.symbol, query.module_id.as_deref())
-        .await
-        .map_err(|e| {
-            error!("Database error fetching analysis results: {}", e);
-            AnyhowError::from(e)
-        })?;
-
-    let dtos = results
-        .into_iter()
-        .map(|r| AnalysisResultDto {
-            id: r.id,
-            request_id: r.request_id,
-            symbol: r.symbol,
-            template_id: r.template_id,
-            module_id: r.module_id,
-            content: r.content,
-            meta_data: r.meta_data,
-            created_at: r.created_at,
-        })
-        .collect();
-
-    Ok(Json(dtos))
-}
-
-/// Retrieves a single analysis result by its primary ID.
-#[instrument(skip(state))]
-#[api(GET, "/api/v1/analysis-results/{id}", output(detail = "AnalysisResultDto"))]
-pub async fn get_analysis_result_by_id(
-    State(state): State<AppState>,
-    Path(id): Path<String>,
-) -> Result<Json<AnalysisResultDto>, ServerError> {
-    let id = Uuid::parse_str(&id).map_err(|_| ServerError::NotFound(format!("Invalid UUID: {}", id)))?;
-
-    let result = crate::db::get_analysis_result_by_id(state.pool(), id)
-        .await
-        .map_err(|e| {
-            error!("Database error fetching analysis result by id: {}", e);
-            AnyhowError::from(e)
-        })?
-        .ok_or_else(|| ServerError::NotFound(format!("Analysis result not found: {}", id)))?;
-
-    let dto = AnalysisResultDto {
-        id: result.id,
-        request_id: result.request_id,
-        symbol: result.symbol,
-        template_id: result.template_id,
-        module_id: result.module_id,
-        content: result.content,
-        meta_data: result.meta_data,
-        created_at: result.created_at,
-    };
-
-    Ok(Json(dto))
-}
diff --git a/services/data-persistence-service/src/api/history.rs b/services/data-persistence-service/src/api/history.rs
new file mode 100644
index 0000000..2d734aa
--- /dev/null
+++ b/services/data-persistence-service/src/api/history.rs
@@ -0,0 +1,110 @@
+use crate::{AppState, ServerError};
+use axum::{
+    extract::{Path, Query, State},
+    http::StatusCode,
+    response::IntoResponse,
+    Json,
+};
+use common_contracts::dtos::{NewWorkflowHistory, WorkflowHistoryDto, WorkflowHistorySummaryDto};
+// use serde::Deserialize;
+use service_kit::{api, api_dto};
+use tracing::{error, instrument};
+use anyhow::Error as AnyhowError;
+use uuid::Uuid;
+
+#[api_dto]
+#[derive(utoipa::IntoParams)]
+pub struct HistoryQuery {
+    pub symbol: Option<String>,
+    pub limit: Option<i64>,
+}
+
+#[instrument(skip(state, payload))]
+#[api(POST, "/api/v1/history")]
+pub async fn create_workflow_history(
+    State(state): State<AppState>,
+    Json(payload): Json<NewWorkflowHistory>,
+) -> Result<impl IntoResponse, ServerError> {
+    let result = crate::db::history::create_workflow_history(state.pool(), &payload)
+        .await
+        .map_err(|e| {
+            error!("Database error inserting workflow history: {}", e);
+            AnyhowError::from(e)
+        })?;
+
+    let dto = WorkflowHistoryDto {
+        request_id: result.request_id,
+        symbol: result.symbol,
+        market: result.market,
+        template_id: result.template_id,
+        status: result.status,
+        start_time: result.start_time,
+        end_time: result.end_time,
+        snapshot_data: result.snapshot_data,
+        created_at: result.created_at,
+    };
+
+    Ok((StatusCode::CREATED, Json(dto)))
+}
+
+#[instrument(skip(state))]
+#[api(GET, "/api/v1/history")]
+pub async fn get_workflow_histories(
+    State(state): State<AppState>,
+    Query(query): Query<HistoryQuery>,
+) -> Result<Json<Vec<WorkflowHistorySummaryDto>>, ServerError> {
+    let limit = query.limit.unwrap_or(20).min(100);
+    let results = crate::db::history::get_workflow_histories(state.pool(), query.symbol.as_deref(), limit)
+        .await
+        .map_err(|e| {
+            error!("Database error fetching workflow histories: {}", e);
+            AnyhowError::from(e)
+        })?;
+
+    let dtos = results
+        .into_iter()
+        .map(|r| WorkflowHistorySummaryDto {
+            request_id: r.request_id,
+            symbol: r.symbol,
+            market: r.market,
+            template_id: r.template_id,
+            status: r.status,
+            start_time: r.start_time,
+            end_time: r.end_time,
+        })
+        .collect();
+
+    Ok(Json(dtos))
+}
+
+#[instrument(skip(state))]
+#[api(GET, "/api/v1/history/{request_id}")]
+pub async fn get_workflow_history_by_id(
+    State(state): State<AppState>,
+    Path(request_id_str): Path<String>,
+) -> Result<Json<WorkflowHistoryDto>, ServerError> {
+    let request_id = Uuid::parse_str(&request_id_str).map_err(|_| ServerError::NotFound(format!("Invalid UUID: {}", request_id_str)))?;
+
+    let result = crate::db::history::get_workflow_history_by_id(state.pool(), request_id)
+        .await
+        .map_err(|e| {
+            error!("Database error fetching workflow history by id: {}", e);
+            AnyhowError::from(e)
+        })?
+        .ok_or_else(|| ServerError::NotFound(format!("History not found: {}", request_id)))?;
+
+    let dto = WorkflowHistoryDto {
+        request_id: result.request_id,
+        symbol: result.symbol,
+        market: result.market,
+        template_id: result.template_id,
+        status: result.status,
+        start_time: result.start_time,
+        end_time: result.end_time,
+        snapshot_data: result.snapshot_data,
+        created_at: result.created_at,
+    };
+
+    Ok(Json(dto))
+}
+
diff --git a/services/data-persistence-service/src/api/mod.rs b/services/data-persistence-service/src/api/mod.rs
index 73e5118..20f3ab7 100644
--- a/services/data-persistence-service/src/api/mod.rs
+++ b/services/data-persistence-service/src/api/mod.rs
@@ -1,10 +1,10 @@
-mod analysis;
+mod provider_cache;
+mod history;
 mod companies;
 mod configs;
 mod market_data;
 mod system;
 mod session_data;
-mod provider_cache;
 
 use crate::AppState;
 use axum::{
@@ -16,6 +16,7 @@ pub fn create_router(_state: AppState) -> Router<AppState> {
     let router: Router<AppState> = Router::new()
         // System
         .route("/health", get(system::get_health))
+        .route("/api/v1/system/history", axum::routing::delete(system::clear_history))
         // Configs
         .route(
             "/configs/llm_providers",
@@ -40,15 +41,15 @@ pub fn create_router(_state: AppState) -> Router<AppState> {
             "/market-data/financial-statements/{symbol}",
             get(market_data::get_financials_by_symbol),
         )
-        // Analysis Results
-        .route(
-            "/analysis-results",
-            post(analysis::create_analysis_result).get(analysis::get_analysis_results),
-        )
-        .route(
-            "/analysis-results/{id}",
-            get(analysis::get_analysis_result_by_id),
-        )
+        // Analysis Results (REMOVED)
+        // .route(
+        //     "/analysis-results",
+        //     post(analysis::create_analysis_result).get(analysis::get_analysis_results),
+        // )
+        // .route(
+        //     "/analysis-results/{id}",
+        //     get(analysis::get_analysis_result_by_id),
+        // )
         // Session Data
         .route(
             "/session-data",
@@ -62,6 +63,15 @@ pub fn create_router(_state: AppState) -> Router<AppState> {
         .route(
             "/provider-cache",
             get(provider_cache::get_cache).post(provider_cache::set_cache),
+        )
+        // Workflow History (NEW)
+        .route(
+            "/history",
+            post(history::create_workflow_history).get(history::get_workflow_histories),
+        )
+        .route(
+            "/history/{request_id}",
+            get(history::get_workflow_history_by_id),
         );
 
     router
diff --git a/services/data-persistence-service/src/api/system.rs b/services/data-persistence-service/src/api/system.rs
index 71a5b3d..ba52654 100644
--- a/services/data-persistence-service/src/api/system.rs
+++ b/services/data-persistence-service/src/api/system.rs
@@ -27,6 +27,19 @@ pub async fn get_health(State(state): State<AppState>) -> Result<Json<HealthStat
     Ok(Json(health))
 }
 
+#[api(DELETE, "/api/v1/system/history")]
+pub async fn clear_history(State(state): State<AppState>) -> Result<axum::http::StatusCode, ServerError> {
+    // Clear session data
+    crate::db::session_data::clear_all_session_data(state.pool())
+        .await
+        .map_err(|e| {
+             tracing::error!("Failed to clear session data: {}", e);
+             ServerError::from(anyhow::anyhow!(e))
+        })?;
+        
+    Ok(axum::http::StatusCode::NO_CONTENT)
+}
+
 #[api(GET, "/tasks", output(list = "TaskProgress"))]
 pub async fn get_tasks(_state: State<AppState>) -> Result<Json<Vec<TaskProgress>>, ServerError> {
     // data-persistence-service 当前不进行异步任务处理，返回空列表
diff --git a/services/data-persistence-service/src/db/analysis_results.rs b/services/data-persistence-service/src/db/analysis_results.rs
deleted file mode 100644
index 50a944e..0000000
--- a/services/data-persistence-service/src/db/analysis_results.rs
+++ /dev/null
@@ -1,75 +0,0 @@
-use crate::models::AnalysisResult;
-use common_contracts::dtos::NewAnalysisResult;
-use sqlx::PgPool;
-use uuid::Uuid;
-
-pub async fn create_analysis_result(
-    pool: &PgPool,
-    payload: &NewAnalysisResult,
-) -> Result<AnalysisResult, sqlx::Error> {
-    sqlx::query_as::<_, AnalysisResult>(
-        r#"
-        INSERT INTO analysis_results (request_id, symbol, template_id, module_id, content, meta_data)
-        VALUES ($1, $2, $3, $4, $5, $6)
-        RETURNING id, request_id, symbol, template_id, module_id, content, meta_data, created_at
-        "#
-    )
-    .bind(&payload.request_id)
-    .bind(&payload.symbol)
-    .bind(&payload.template_id)
-    .bind(&payload.module_id)
-    .bind(&payload.content)
-    .bind(&payload.meta_data)
-    .fetch_one(pool)
-    .await
-}
-
-pub async fn get_analysis_results(
-    pool: &PgPool,
-    symbol: &str,
-    module_id: Option<&str>,
-) -> Result<Vec<AnalysisResult>, sqlx::Error> {
-    if let Some(mid) = module_id {
-        sqlx::query_as::<_, AnalysisResult>(
-            r#"
-            SELECT id, request_id, symbol, template_id, module_id, content, meta_data, created_at 
-            FROM analysis_results 
-            WHERE symbol = $1 AND module_id = $2
-            ORDER BY created_at DESC
-            "#
-        )
-        .bind(symbol)
-        .bind(mid)
-        .fetch_all(pool)
-        .await
-    } else {
-        sqlx::query_as::<_, AnalysisResult>(
-            r#"
-            SELECT id, request_id, symbol, template_id, module_id, content, meta_data, created_at 
-            FROM analysis_results 
-            WHERE symbol = $1
-            ORDER BY created_at DESC
-            "#
-        )
-        .bind(symbol)
-        .fetch_all(pool)
-        .await
-    }
-}
-
-pub async fn get_analysis_result_by_id(
-    pool: &PgPool,
-    id: Uuid,
-) -> Result<Option<AnalysisResult>, sqlx::Error> {
-    sqlx::query_as::<_, AnalysisResult>(
-        r#"
-        SELECT id, request_id, symbol, template_id, module_id, content, meta_data, created_at 
-        FROM analysis_results
-        WHERE id = $1
-        "#
-    )
-    .bind(&id)
-    .fetch_optional(pool)
-    .await
-}
-
diff --git a/services/data-persistence-service/src/db/history.rs b/services/data-persistence-service/src/db/history.rs
new file mode 100644
index 0000000..c2db85e
--- /dev/null
+++ b/services/data-persistence-service/src/db/history.rs
@@ -0,0 +1,81 @@
+use crate::models::WorkflowHistory;
+use common_contracts::dtos::NewWorkflowHistory;
+use sqlx::PgPool;
+use uuid::Uuid;
+
+pub async fn create_workflow_history(
+    pool: &PgPool,
+    payload: &NewWorkflowHistory,
+) -> Result<WorkflowHistory, sqlx::Error> {
+    sqlx::query_as::<_, WorkflowHistory>(
+        r#"
+        INSERT INTO workflow_history (request_id, symbol, market, template_id, status, start_time, end_time, snapshot_data)
+        VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
+        RETURNING request_id, symbol, market, template_id, status, start_time, end_time, snapshot_data, created_at
+        "#
+    )
+    .bind(&payload.request_id)
+    .bind(&payload.symbol)
+    .bind(&payload.market)
+    .bind(&payload.template_id)
+    .bind(&payload.status)
+    .bind(&payload.start_time)
+    .bind(&payload.end_time)
+    .bind(&payload.snapshot_data)
+    .fetch_one(pool)
+    .await
+}
+
+pub async fn get_workflow_history_by_id(
+    pool: &PgPool,
+    request_id: Uuid,
+) -> Result<Option<WorkflowHistory>, sqlx::Error> {
+    sqlx::query_as::<_, WorkflowHistory>(
+        r#"
+        SELECT request_id, symbol, market, template_id, status, start_time, end_time, snapshot_data, created_at
+        FROM workflow_history
+        WHERE request_id = $1
+        "#
+    )
+    .bind(request_id)
+    .fetch_optional(pool)
+    .await
+}
+
+pub async fn get_workflow_histories(
+    pool: &PgPool,
+    symbol: Option<&str>,
+    limit: i64,
+) -> Result<Vec<WorkflowHistory>, sqlx::Error> {
+    match symbol {
+        Some(s) => {
+             sqlx::query_as::<_, WorkflowHistory>(
+                r#"
+                SELECT request_id, symbol, market, template_id, status, start_time, end_time, snapshot_data, created_at
+                FROM workflow_history
+                WHERE symbol = $1
+                ORDER BY created_at DESC
+                LIMIT $2
+                "#
+            )
+            .bind(s)
+            .bind(limit)
+            .fetch_all(pool)
+            .await
+        },
+        None => {
+            sqlx::query_as::<_, WorkflowHistory>(
+                r#"
+                SELECT request_id, symbol, market, template_id, status, start_time, end_time, snapshot_data, created_at
+                FROM workflow_history
+                ORDER BY created_at DESC
+                LIMIT $1
+                "#
+            )
+            .bind(limit)
+            .fetch_all(pool)
+            .await
+        }
+    }
+}
+
diff --git a/services/data-persistence-service/src/db/mod.rs b/services/data-persistence-service/src/db/mod.rs
index 3e9f847..9ebcc1d 100644
--- a/services/data-persistence-service/src/db/mod.rs
+++ b/services/data-persistence-service/src/db/mod.rs
@@ -9,7 +9,7 @@ pub mod companies;
 pub mod market_data;
 pub mod session_data;
 pub mod provider_cache;
-pub mod analysis_results;
+pub mod history;
 
 pub use companies::{get_company_by_symbol, upsert_company};
 pub use market_data::{
@@ -18,4 +18,3 @@ pub use market_data::{
 };
 pub use session_data::{insert_session_data, get_session_data, delete_session_data};
 pub use provider_cache::{get_cache, set_cache};
-pub use analysis_results::{create_analysis_result, get_analysis_results, get_analysis_result_by_id};
diff --git a/services/data-persistence-service/src/db/session_data.rs b/services/data-persistence-service/src/db/session_data.rs
index d72e115..2308c7f 100644
--- a/services/data-persistence-service/src/db/session_data.rs
+++ b/services/data-persistence-service/src/db/session_data.rs
@@ -66,3 +66,12 @@ pub async fn delete_session_data(
     Ok(())
 }
 
+pub async fn clear_all_session_data(
+    pool: &PgPool,
+) -> Result<(), sqlx::Error> {
+    sqlx::query("TRUNCATE TABLE session_raw_data")
+        .execute(pool)
+        .await?;
+    Ok(())
+}
+
diff --git a/services/data-persistence-service/src/models.rs b/services/data-persistence-service/src/models.rs
index 73cfe3d..b52b876 100644
--- a/services/data-persistence-service/src/models.rs
+++ b/services/data-persistence-service/src/models.rs
@@ -13,15 +13,16 @@ pub struct SystemConfig {
 }
 
 #[derive(Debug, Clone, Serialize, sqlx::FromRow)]
-pub struct AnalysisResult {
-    pub id: Uuid,
-    #[sqlx(default)] // request_id is missing in some schema versions, handle gracefully or ensure migration runs
+pub struct WorkflowHistory {
     pub request_id: Uuid,
     pub symbol: String,
-    // template_id/module_id might be missing if schema is very old, but we rely on migrations
-    pub template_id: String,
-    pub module_id: String,
-    pub content: String,
-    pub meta_data: serde_json::Value,
+    pub market: String,
+    pub template_id: Option<String>,
+    pub status: String,
+    pub start_time: chrono::DateTime<chrono::Utc>,
+    pub end_time: Option<chrono::DateTime<chrono::Utc>>,
+    pub snapshot_data: serde_json::Value,
     pub created_at: chrono::DateTime<chrono::Utc>,
 }
+
+
diff --git a/services/data-persistence-service/tests/api_tests.rs b/services/data-persistence-service/tests/api_tests.rs
index 6bf2d47..8741051 100644
--- a/services/data-persistence-service/tests/api_tests.rs
+++ b/services/data-persistence-service/tests/api_tests.rs
@@ -8,8 +8,8 @@ use axum::{
 use data_persistence_service::{
     self as app,
     dtos::{
-        AnalysisResultDto, CompanyProfileDto, DailyMarketDataBatchDto, DailyMarketDataDto,
-        NewAnalysisResult, TimeSeriesFinancialBatchDto, TimeSeriesFinancialDto,
+        CompanyProfileDto, DailyMarketDataBatchDto, DailyMarketDataDto,
+        TimeSeriesFinancialBatchDto, TimeSeriesFinancialDto,
     },
     AppState,
 };
@@ -168,63 +168,3 @@ async fn test_api_batch_insert_and_get_daily(pool: PgPool) {
     assert_eq!(fetched_data[0].close_price, Some(250.5));
 }
 
-#[sqlx::test]
-async fn test_api_create_and_get_analysis(pool: PgPool) {
-    let state = AppState::new(pool);
-    let openapi = app::build_openapi_spec();
-    let app = app::build_rest_router_with_state(openapi, state).unwrap();
-
-    // 1. Act: Create a new analysis result
-    let new_analysis = app::dtos::NewAnalysisResult {
-        request_id: Uuid::new_v4(),
-        symbol: "API.AI".to_string(),
-        template_id: "api_template".to_string(),
-        module_id: "bull_case".to_string(),
-        content: "This is a test analysis from an API test.".to_string(),
-        meta_data: serde_json::json!({ "model": "test-gpt" }),
-    };
-
-    let request = Request::builder()
-        .method("POST")
-        .uri("/api/v1/analysis-results")
-        .header("content-type", "application/json")
-        .body(Body::from(serde_json::to_string(&new_analysis).unwrap()))
-        .unwrap();
-
-    let response = ServiceExt::oneshot(app.clone().into_service(), request).await.unwrap();
-    assert_eq!(response.status(), StatusCode::CREATED);
-
-    let body = response.into_body().collect().await.unwrap().to_bytes();
-    let created_analysis: app::dtos::AnalysisResultDto = serde_json::from_slice(&body).unwrap();
-
-    // 2. Act: Get the analysis by ID
-    let request_get = Request::builder()
-        .method("GET")
-        .uri(format!("/api/v1/analysis-results/{}", created_analysis.id))
-        .body(Body::empty())
-        .unwrap();
-
-    let response_get = ServiceExt::oneshot(app.clone().into_service(), request_get).await.unwrap();
-    assert_eq!(response_get.status(), StatusCode::OK);
-    
-    // 3. Assert: Check the response body
-    let body_get = response_get.into_body().collect().await.unwrap().to_bytes();
-    let fetched_analysis: app::dtos::AnalysisResultDto = serde_json::from_slice(&body_get).unwrap();
-    
-    assert_eq!(fetched_analysis.id, created_analysis.id);
-    assert_eq!(fetched_analysis.symbol, "API.AI");
-
-    // 4. Act: Get by query params
-    let request_query = Request::builder()
-        .method("GET")
-        .uri("/api/v1/analysis-results?symbol=API.AI&module_id=bull_case")
-        .body(Body::empty())
-        .unwrap();
-    
-    let response_query = ServiceExt::oneshot(app.clone().into_service(), request_query).await.unwrap();
-    assert_eq!(response_query.status(), StatusCode::OK);
-    let body_query = response_query.into_body().collect().await.unwrap().to_bytes();
-    let fetched_list: Vec<app::dtos::AnalysisResultDto> = serde_json::from_slice(&body_query).unwrap();
-    assert_eq!(fetched_list.len(), 1);
-    assert_eq!(fetched_list[0].id, created_analysis.id);
-}
diff --git a/services/data-persistence-service/tests/db_tests.rs b/services/data-persistence-service/tests/db_tests.rs
index 20487e9..ba8b921 100644
--- a/services/data-persistence-service/tests/db_tests.rs
+++ b/services/data-persistence-service/tests/db_tests.rs
@@ -7,7 +7,7 @@
 
 use data_persistence_service::{
     db,
-    dtos::{CompanyProfileDto, TimeSeriesFinancialDto, DailyMarketDataDto, NewAnalysisResult},
+    dtos::{CompanyProfileDto, TimeSeriesFinancialDto, DailyMarketDataDto},
     models,
 };
 use sqlx::{postgres::PgPoolOptions, PgPool};
@@ -153,35 +153,3 @@ async fn test_batch_insert_and_get_daily_data(pool: PgPool) {
     assert!(close_str == "102.0" || close_str == "102");
 }
 
-#[sqlx::test]
-async fn test_create_and_get_analysis_results(pool: PgPool) {
-    // 1. Setup: Create a test analysis result DTO
-    let new_analysis = NewAnalysisResult {
-        request_id: Uuid::new_v4(),
-        symbol: "TEST.AI".to_string(),
-        template_id: "default_template".to_string(),
-        module_id: "bull_case".to_string(),
-        content: "This is a bullish analysis.".to_string(),
-        meta_data: serde_json::json!({ "tokens": 123 }),
-    };
-
-    // 2. Act: Call the create function
-    let created_result = db::create_analysis_result(&pool, &new_analysis).await.unwrap();
-    assert_eq!(created_result.symbol, "TEST.AI");
-    assert_eq!(created_result.module_id, "bull_case");
-
-    // 3. Assert: Get by symbol and module_id
-    let fetched_by_symbol = db::get_analysis_results(&pool, "TEST.AI", Some("bull_case")).await.unwrap();
-    assert_eq!(fetched_by_symbol.len(), 1);
-    assert_eq!(fetched_by_symbol[0].id, created_result.id);
-    assert_eq!(fetched_by_symbol[0].content, new_analysis.content);
-
-    // 4. Assert: Get by ID
-    let fetched_by_id = db::get_analysis_result_by_id(&pool, created_result.id).await.unwrap().unwrap();
-    assert_eq!(fetched_by_id.symbol, "TEST.AI");
-    assert_eq!(fetched_by_id.content, new_analysis.content);
-
-    // 5. Assert: Get by symbol only
-    let fetched_all_for_symbol = db::get_analysis_results(&pool, "TEST.AI", None).await.unwrap();
-    assert_eq!(fetched_all_for_symbol.len(), 1);
-}
diff --git a/services/finnhub-provider-service/Cargo.lock b/services/finnhub-provider-service/Cargo.lock
index 5ab7c58..71c6ab2 100644
--- a/services/finnhub-provider-service/Cargo.lock
+++ b/services/finnhub-provider-service/Cargo.lock
@@ -226,6 +226,16 @@ dependencies = [
  "syn 2.0.110",
 ]
 
+[[package]]
+name = "bstr"
+version = "1.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63044e1ae8e69f3b5a92c736ca6269b8d12fa7efe39bf34ddb06d102cf0e2cab"
+dependencies = [
+ "memchr",
+ "serde",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.19.0"
@@ -270,6 +280,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b97463e1064cb1b1c1384ad0a0b9c8abd0988e2a91f52606c80ef14aadb63e36"
 dependencies = [
  "find-msvc-tools",
+ "jobserver",
+ "libc",
  "shlex",
 ]
 
@@ -317,6 +329,7 @@ dependencies = [
  "tracing",
  "utoipa",
  "uuid",
+ "workflow-context",
 ]
 
 [[package]]
@@ -754,6 +767,34 @@ dependencies = [
  "wasip2",
 ]
 
+[[package]]
+name = "git2"
+version = "0.18.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "232e6a7bfe35766bf715e55a88b39a700596c0ccfd88cd3680b4cdb40d66ef70"
+dependencies = [
+ "bitflags",
+ "libc",
+ "libgit2-sys",
+ "log",
+ "openssl-probe",
+ "openssl-sys",
+ "url",
+]
+
+[[package]]
+name = "globset"
+version = "0.4.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52dfc19153a48bde0cbd630453615c8151bce3a5adfac7a0aebfbf0a1e1f57e3"
+dependencies = [
+ "aho-corasick",
+ "bstr",
+ "log",
+ "regex-automata",
+ "regex-syntax",
+]
+
 [[package]]
 name = "h2"
 version = "0.4.12"
@@ -818,6 +859,12 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "http"
 version = "1.3.1"
@@ -1114,6 +1161,16 @@ version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
 
+[[package]]
+name = "jobserver"
+version = "0.1.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9afb3de4395d6b3e67a780b6de64b51c978ecf11cb9a462c66be7d4ca9039d33"
+dependencies = [
+ "getrandom 0.3.4",
+ "libc",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.82"
@@ -1147,6 +1204,46 @@ version = "0.2.177"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2874a2af47a2325c2001a6e6fad9b16a53b802102b528163885171cf92b15976"
 
+[[package]]
+name = "libgit2-sys"
+version = "0.16.2+1.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee4126d8b4ee5c9d9ea891dd875cfdc1e9d0950437179104b183d7d8a74d24e8"
+dependencies = [
+ "cc",
+ "libc",
+ "libssh2-sys",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+]
+
+[[package]]
+name = "libssh2-sys"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "220e4f05ad4a218192533b300327f5150e809b54c4ec83b5a1d91833601811b9"
+dependencies = [
+ "cc",
+ "libc",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+ "vcpkg",
+]
+
+[[package]]
+name = "libz-sys"
+version = "1.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "15d118bbf3771060e7311cc7bb0545b01d08a8b4a7de949198dec1fa0ca1c0f7"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.11.0"
@@ -1315,6 +1412,15 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
 
+[[package]]
+name = "openssl-src"
+version = "300.5.4+3.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a507b3792995dae9b0df8a1c1e3771e8418b7c2d9f0baeba32e6fe8b06c7cb72"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "openssl-sys"
 version = "0.9.111"
@@ -1323,6 +1429,7 @@ checksum = "82cab2d520aa75e3c58898289429321eb788c3106963d0dc886ec7a5f4adc321"
 dependencies = [
  "cc",
  "libc",
+ "openssl-src",
  "pkg-config",
  "vcpkg",
 ]
@@ -1891,6 +1998,15 @@ version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
 
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
+dependencies = [
+ "winapi-util",
+]
+
 [[package]]
 name = "schannel"
 version = "0.1.28"
@@ -2801,6 +2917,16 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
+name = "walkdir"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
+dependencies = [
+ "same-file",
+ "winapi-util",
+]
+
 [[package]]
 name = "want"
 version = "0.3.1"
@@ -2911,6 +3037,15 @@ dependencies = [
  "rustls-pki-types",
 ]
 
+[[package]]
+name = "winapi-util"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
+dependencies = [
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "windows-core"
 version = "0.62.2"
@@ -3152,6 +3287,22 @@ version = "0.46.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
 
+[[package]]
+name = "workflow-context"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "git2",
+ "globset",
+ "hex",
+ "regex",
+ "serde",
+ "serde_json",
+ "sha2",
+ "thiserror 1.0.69",
+ "walkdir",
+]
+
 [[package]]
 name = "writeable"
 version = "0.6.2"
diff --git a/services/finnhub-provider-service/src/worker.rs b/services/finnhub-provider-service/src/worker.rs
index 42dd826..482e450 100644
--- a/services/finnhub-provider-service/src/worker.rs
+++ b/services/finnhub-provider-service/src/worker.rs
@@ -246,6 +246,7 @@ mod integration_tests {
             symbol: CanonicalSymbol::new("AAPL", &Market::US),
             market: "US".to_string(),
             template_id: Some("default".to_string()),
+            output_path: None,
         };
         
         // 4. NATS
diff --git a/services/mock-provider-service/Cargo.lock b/services/mock-provider-service/Cargo.lock
index cf86873..597849e 100644
--- a/services/mock-provider-service/Cargo.lock
+++ b/services/mock-provider-service/Cargo.lock
@@ -329,6 +329,7 @@ dependencies = [
  "tracing",
  "utoipa",
  "uuid",
+ "workflow-context",
 ]
 
 [[package]]
diff --git a/services/mock-provider-service/src/main.rs b/services/mock-provider-service/src/main.rs
index 0a06de1..da6e3c1 100644
--- a/services/mock-provider-service/src/main.rs
+++ b/services/mock-provider-service/src/main.rs
@@ -1,4 +1,5 @@
 mod worker;
+mod workflow_adapter;
 mod config;
 mod error;
 mod state;
diff --git a/services/mock-provider-service/src/worker.rs b/services/mock-provider-service/src/worker.rs
index 88967e3..2922dcd 100644
--- a/services/mock-provider-service/src/worker.rs
+++ b/services/mock-provider-service/src/worker.rs
@@ -1,13 +1,12 @@
-use anyhow::{Result, anyhow, Context};
+use anyhow::Result;
 use tracing::{info, error};
-use common_contracts::workflow_types::{WorkflowTaskCommand, WorkflowTaskEvent, TaskStatus, TaskResult};
+use common_contracts::workflow_types::WorkflowTaskCommand;
 use common_contracts::subjects::{NatsSubject, SubjectMessage};
-use common_contracts::dtos::{CompanyProfileDto, TimeSeriesFinancialDto};
-use workflow_context::WorkerContext;
 use crate::state::AppState;
-use serde_json::json;
 use futures_util::StreamExt;
-use chrono::NaiveDate;
+use std::sync::Arc;
+use common_contracts::workflow_runner::WorkflowNodeRunner;
+use crate::workflow_adapter::MockNode;
 
 pub async fn run_consumer(state: AppState) -> Result<()> {
     info!("Starting Mock Provider message consumer...");
@@ -40,173 +39,8 @@ pub async fn run_consumer(state: AppState) -> Result<()> {
     Ok(())
 }
 
-async fn handle_workflow_command(_state: AppState, nats: async_nats::Client, cmd: WorkflowTaskCommand) -> Result<()> {
-    info!("Processing mock workflow command: task_id={}", cmd.task_id);
-
-    let symbol_code = cmd.config.get("symbol").and_then(|s| s.as_str()).unwrap_or("MOCK").to_string();
-    
-    // Generate Dummy Data
-    let profile = CompanyProfileDto {
-        symbol: symbol_code.clone(),
-        name: format!("Mock Company {}", symbol_code),
-        industry: Some("Testing".to_string()),
-        list_date: Some(NaiveDate::from_ymd_opt(2000, 1, 1).unwrap()),
-        additional_info: Some(json!({
-            "description": "This is a mock company for testing purposes.",
-            "market_cap": 1000000000.0,
-            "currency": "USD",
-            "country": "US"
-        })),
-        updated_at: Some(chrono::Utc::now()),
-    };
-
-    // Create Normalized Financials
-    let date = NaiveDate::from_ymd_opt(2023, 12, 31).unwrap();
-    let financials = vec![
-        TimeSeriesFinancialDto {
-            symbol: symbol_code.clone(),
-            metric_name: "revenue".to_string(),
-            period_date: date,
-            value: 1000000.0,
-            source: Some("mock".to_string()),
-        },
-        TimeSeriesFinancialDto {
-            symbol: symbol_code.clone(),
-            metric_name: "net_income".to_string(),
-            period_date: date,
-            value: 500000.0,
-            source: Some("mock".to_string()),
-        },
-        TimeSeriesFinancialDto {
-            symbol: symbol_code.clone(),
-            metric_name: "gross_profit".to_string(),
-            period_date: date,
-            value: 800000.0,
-            source: Some("mock".to_string()),
-        },
-        TimeSeriesFinancialDto {
-            symbol: symbol_code.clone(),
-            metric_name: "operating_income".to_string(),
-            period_date: date,
-            value: 600000.0,
-            source: Some("mock".to_string()),
-        },
-        TimeSeriesFinancialDto {
-            symbol: symbol_code.clone(),
-            metric_name: "eps".to_string(),
-            period_date: date,
-            value: 5.0,
-            source: Some("mock".to_string()),
-        },
-        TimeSeriesFinancialDto {
-            symbol: symbol_code.clone(),
-            metric_name: "total_assets".to_string(),
-            period_date: date,
-            value: 2000000.0,
-            source: Some("mock".to_string()),
-        },
-        TimeSeriesFinancialDto {
-            symbol: symbol_code.clone(),
-            metric_name: "total_liabilities".to_string(),
-            period_date: date,
-            value: 1000000.0,
-            source: Some("mock".to_string()),
-        },
-        TimeSeriesFinancialDto {
-            symbol: symbol_code.clone(),
-            metric_name: "total_equity".to_string(),
-            period_date: date,
-            value: 1000000.0,
-            source: Some("mock".to_string()),
-        },
-        TimeSeriesFinancialDto {
-            symbol: symbol_code.clone(),
-            metric_name: "operating_cash_flow".to_string(),
-            period_date: date,
-            value: 550000.0,
-            source: Some("mock".to_string()),
-        },
-        TimeSeriesFinancialDto {
-            symbol: symbol_code.clone(),
-            metric_name: "free_cash_flow".to_string(),
-            period_date: date,
-            value: 450000.0,
-            source: Some("mock".to_string()),
-        }
-    ];
-
-    // Write to VGCS
-    let root_path = cmd.storage.root_path.clone();
-    let req_id = cmd.request_id.to_string();
-    let base_commit = cmd.context.base_commit.clone().unwrap_or_default();
-    let symbol_code_clone = symbol_code.clone();
-    
-    // Clone data for the blocking task
-    let profile_clone = profile.clone();
-    let financials_clone = financials.clone();
-
-    let commit_result = tokio::task::spawn_blocking(move || -> Result<String> {
-        let mut ctx = WorkerContext::new(&root_path, &req_id, &base_commit);
-
-        let base_dir = format!("raw/mock/{}", symbol_code_clone);
-        
-        let profile_json = serde_json::to_string_pretty(&profile_clone)
-            .context("Failed to serialize profile")?;
-        ctx.write_file(&format!("{}/profile.json", base_dir), &profile_json)?;
-        
-        let financials_json = serde_json::to_string_pretty(&financials_clone)
-            .context("Failed to serialize financials")?;
-        ctx.write_file(&format!("{}/financials.json", base_dir), &financials_json)?;
-
-        ctx.commit(&format!("Fetched Mock data for {}", symbol_code_clone))
-    }).await;
-
-    let new_commit = match commit_result {
-        Ok(res) => match res {
-            Ok(c) => c,
-            Err(e) => return send_failure(&nats, &cmd, &format!("VGCS failed: {}", e)).await,
-        },
-        Err(e) => return send_failure(&nats, &cmd, &format!("Task join error: {}", e)).await,
-    };
-    
-    info!("Task {} completed. New commit: {}", cmd.task_id, new_commit);
-
-    // Send Success Event
-    let event = WorkflowTaskEvent {
-        request_id: cmd.request_id,
-        task_id: cmd.task_id,
-        status: TaskStatus::Completed,
-        result: Some(TaskResult {
-            new_commit: Some(new_commit),
-            error: None,
-            summary: Some(json!({
-                "symbol": symbol_code,
-                "records": financials.len()
-            })),
-        }),
-    };
-    
-    publish_event(&nats, event).await
-}
-
-async fn send_failure(nats: &async_nats::Client, cmd: &WorkflowTaskCommand, error_msg: &str) -> Result<()> {
-    error!("Task {} failed: {}", cmd.task_id, error_msg);
-    let event = WorkflowTaskEvent {
-        request_id: cmd.request_id,
-        task_id: cmd.task_id.clone(),
-        status: TaskStatus::Failed,
-        result: Some(TaskResult {
-            new_commit: None,
-            error: Some(error_msg.to_string()),
-            summary: None,
-        }),
-    };
-    publish_event(nats, event).await
-}
-
-async fn publish_event(nats: &async_nats::Client, event: WorkflowTaskEvent) -> Result<()> {
-    let subject = event.subject().to_string();
-    let payload = serde_json::to_vec(&event)?;
-    nats.publish(subject, payload.into()).await?;
-    Ok(())
+async fn handle_workflow_command(state: AppState, nats: async_nats::Client, cmd: WorkflowTaskCommand) -> Result<()> {
+    let node = Arc::new(MockNode::new(state));
+    let runner = WorkflowNodeRunner::new(nats);
+    runner.run(node, cmd).await
 }
diff --git a/services/mock-provider-service/src/workflow_adapter.rs b/services/mock-provider-service/src/workflow_adapter.rs
new file mode 100644
index 0000000..526d253
--- /dev/null
+++ b/services/mock-provider-service/src/workflow_adapter.rs
@@ -0,0 +1,118 @@
+use std::sync::Arc;
+use async_trait::async_trait;
+use anyhow::{Result, anyhow};
+use serde_json::{json, Value};
+use std::collections::HashMap;
+use chrono::NaiveDate;
+
+use common_contracts::workflow_node::{WorkflowNode, NodeContext, NodeExecutionResult, ArtifactContent};
+use common_contracts::data_formatting;
+use common_contracts::dtos::{CompanyProfileDto, TimeSeriesFinancialDto};
+use crate::state::AppState;
+
+pub struct MockNode {
+    state: AppState,
+}
+
+impl MockNode {
+    pub fn new(state: AppState) -> Self {
+        Self { state }
+    }
+}
+
+#[async_trait]
+impl WorkflowNode for MockNode {
+    fn node_type(&self) -> &str {
+        "mock"
+    }
+
+    async fn execute(&self, _ctx: &NodeContext, config: &Value) -> Result<NodeExecutionResult> {
+        let symbol = config.get("symbol").and_then(|s| s.as_str()).unwrap_or("MOCK").to_string();
+        
+        // Generate Dummy Data
+        let profile = CompanyProfileDto {
+            symbol: symbol.clone(),
+            name: format!("Mock Company {}", symbol),
+            industry: Some("Testing".to_string()),
+            list_date: Some(NaiveDate::from_ymd_opt(2000, 1, 1).unwrap()),
+            additional_info: Some(json!({
+                "description": "This is a mock company for testing purposes.",
+                "market_cap": 1000000000.0,
+                "currency": "USD",
+                "country": "US"
+            })),
+            updated_at: Some(chrono::Utc::now()),
+        };
+
+        let date = NaiveDate::from_ymd_opt(2023, 12, 31).unwrap();
+        let financials = vec![
+            TimeSeriesFinancialDto {
+                symbol: symbol.clone(),
+                metric_name: "revenue".to_string(),
+                period_date: date,
+                value: 1000000.0,
+                source: Some("mock".to_string()),
+            },
+            TimeSeriesFinancialDto {
+                symbol: symbol.clone(),
+                metric_name: "net_income".to_string(),
+                period_date: date,
+                value: 500000.0,
+                source: Some("mock".to_string()),
+            },
+            TimeSeriesFinancialDto {
+                symbol: symbol.clone(),
+                metric_name: "total_assets".to_string(),
+                period_date: date,
+                value: 2000000.0,
+                source: Some("mock".to_string()),
+            },
+            TimeSeriesFinancialDto {
+                symbol: symbol.clone(),
+                metric_name: "operating_cash_flow".to_string(),
+                period_date: date,
+                value: 550000.0,
+                source: Some("mock".to_string()),
+            },
+        ];
+
+        // Prepare Artifacts
+        let mut artifacts = HashMap::new();
+        artifacts.insert("profile.json".to_string(), json!(profile).into());
+        artifacts.insert("financials.json".to_string(), json!(financials).into());
+
+        Ok(NodeExecutionResult {
+            artifacts,
+            meta_summary: Some(json!({
+                "symbol": symbol,
+                "records": financials.len()
+            })),
+        })
+    }
+
+    fn render_report(&self, result: &NodeExecutionResult) -> Result<String> {
+        let profile_json = match result.artifacts.get("profile.json") {
+             Some(ArtifactContent::Json(v)) => v,
+             _ => return Err(anyhow!("Missing profile.json")),
+        };
+        let financials_json = match result.artifacts.get("financials.json") {
+             Some(ArtifactContent::Json(v)) => v,
+             _ => return Err(anyhow!("Missing financials.json")),
+        };
+
+        let symbol = profile_json["symbol"].as_str().unwrap_or("Unknown");
+
+        let mut report_md = String::new();
+        report_md.push_str(&format!("# Mock Data Report: {}\n\n", symbol));
+        
+        report_md.push_str("## Company Profile\n\n");
+        report_md.push_str(&data_formatting::format_data(profile_json));
+        report_md.push_str("\n\n");
+
+        report_md.push_str("## Financial Statements\n\n");
+        report_md.push_str(&data_formatting::format_data(financials_json));
+
+        Ok(report_md)
+    }
+}
+
diff --git a/services/report-generator-service/Cargo.lock b/services/report-generator-service/Cargo.lock
index ef89e04..2345295 100644
--- a/services/report-generator-service/Cargo.lock
+++ b/services/report-generator-service/Cargo.lock
@@ -424,6 +424,7 @@ dependencies = [
  "tracing",
  "utoipa",
  "uuid",
+ "workflow-context",
 ]
 
 [[package]]
diff --git a/services/report-generator-service/src/persistence.rs b/services/report-generator-service/src/persistence.rs
index c4d88c5..c45e89b 100644
--- a/services/report-generator-service/src/persistence.rs
+++ b/services/report-generator-service/src/persistence.rs
@@ -8,7 +8,7 @@ use crate::error::Result;
 use common_contracts::{
     config_models::{AnalysisTemplateSets, LlmProvidersConfig},
     dtos::{
-        AnalysisResultDto, CompanyProfileDto, NewAnalysisResult, RealtimeQuoteDto, SessionDataDto,
+        CompanyProfileDto, RealtimeQuoteDto, SessionDataDto,
         TimeSeriesFinancialBatchDto, TimeSeriesFinancialDto,
     },
 };
@@ -141,37 +141,6 @@ impl PersistenceClient {
 
     // --- Data Writing Methods ---
 
-    pub async fn create_analysis_result(&self, result: NewAnalysisResult) -> Result<()> {
-        let url = format!("{}/analysis-results", self.base_url);
-        info!(
-            "Persisting analysis result for symbol '{}', module '{}' to {}",
-            result.symbol, result.module_id, url
-        );
-        self.client
-            .post(&url)
-            .json(&result)
-            .send()
-            .await?
-            .error_for_status()?;
-        Ok(())
-    }
-
-    pub async fn get_analysis_results(&self, symbol: &str) -> Result<Vec<AnalysisResultDto>> {
-        let url = format!("{}/analysis-results", self.base_url);
-        let params = [("symbol", symbol)];
-        info!("Fetching analysis results for {} from {}", symbol, url);
-        let dtos = self
-            .client
-            .get(&url)
-            .query(&params)
-            .send()
-            .await?
-            .error_for_status()?
-            .json::<Vec<AnalysisResultDto>>()
-            .await?;
-        Ok(dtos)
-    }
-
     pub async fn upsert_company_profile(&self, profile: CompanyProfileDto) -> Result<()> {
         let url = format!("{}/companies", self.base_url);
         info!("Upserting company profile for {} to {}", profile.symbol, url);
diff --git a/services/report-generator-service/src/worker.rs b/services/report-generator-service/src/worker.rs
index 97b9db1..aad9e52 100644
--- a/services/report-generator-service/src/worker.rs
+++ b/services/report-generator-service/src/worker.rs
@@ -228,17 +228,49 @@ async fn run_vgcs_based_generation(
     };
     let execution_log_clone = execution_log.clone();
 
+    // Clone variables for the closure to avoid moving the original values
+    let log_path_for_closure = log_path.clone();
+    let task_id_for_closure = task_id_clone.clone();
+
     // We need to commit on top of base commit
     let commit_res = tokio::task::spawn_blocking(move || -> Result<String> {
          let mut ctx = WorkerContext::new(&root_path, &req_id_clone, &commit_clone);
          ctx.write_file(&output_path_clone, &full_content_clone).map_err(|e| ProviderError::Internal(e))?;
          // Write the sidecar log
-         ctx.write_file(&log_path, &execution_log_clone).map_err(|e| ProviderError::Internal(e))?;
+         ctx.write_file(&log_path_for_closure, &execution_log_clone).map_err(|e| ProviderError::Internal(e))?;
          
-         ctx.commit(&format!("Analysis Result for {}", task_id_clone)).map_err(|e| ProviderError::Internal(e))
+         ctx.commit(&format!("Analysis Result for {}", task_id_for_closure)).map_err(|e| ProviderError::Internal(e))
     }).await.map_err(|e| ProviderError::Internal(anyhow::anyhow!("Join Error: {}", e)))??;
     
     info!("Generated report committed: {}", commit_res);
+    
+    // Send completion event with metadata to Orchestrator
+    if let Some(task_id) = &command.task_id {
+        let result_summary = serde_json::json!({
+            "output_path": output_path,
+            "execution_log_path": log_path
+        });
+        
+        let completion_evt = common_contracts::workflow_types::WorkflowTaskEvent {
+            request_id: command.request_id,
+            task_id: task_id.clone(),
+            status: common_contracts::workflow_types::TaskStatus::Completed,
+            result: Some(common_contracts::workflow_types::TaskResult {
+                new_commit: Some(commit_res.clone()),
+                error: None,
+                summary: Some(result_summary),
+            }),
+        };
+        
+        let subject = common_contracts::subjects::NatsSubject::WorkflowEventTaskCompleted.to_string();
+         if let Ok(payload) = serde_json::to_vec(&completion_evt) {
+            let _ = state.nats.publish(subject, payload.into()).await;
+        }
+    }
+
+    // 7. Persist to Database for History (REMOVED)
+    // analysis_results table is dropped. We rely on VGCS + Orchestrator Workflow History.
+    info!("Analysis result saved to VGCS (commit: {}). Database persistence skipped (table removed).", commit_res);
 
     Ok(commit_res)
 }
diff --git a/services/tushare-provider-service/Cargo.lock b/services/tushare-provider-service/Cargo.lock
index aad008b..4c4d0ad 100644
--- a/services/tushare-provider-service/Cargo.lock
+++ b/services/tushare-provider-service/Cargo.lock
@@ -329,6 +329,7 @@ dependencies = [
  "tracing",
  "utoipa",
  "uuid",
+ "workflow-context",
 ]
 
 [[package]]
diff --git a/services/tushare-provider-service/src/generic_worker.rs b/services/tushare-provider-service/src/generic_worker.rs
index 264da23..6c91a6d 100644
--- a/services/tushare-provider-service/src/generic_worker.rs
+++ b/services/tushare-provider-service/src/generic_worker.rs
@@ -1,140 +1,12 @@
-use anyhow::{Result, anyhow, Context};
-use tracing::{info, error, warn};
-use common_contracts::workflow_types::{WorkflowTaskCommand, WorkflowTaskEvent, TaskStatus, TaskResult};
-use common_contracts::subjects::SubjectMessage;
-use common_contracts::dtos::{CompanyProfileDto, TimeSeriesFinancialDto};
-use workflow_context::WorkerContext;
+use anyhow::Result;
+use common_contracts::workflow_types::WorkflowTaskCommand;
 use crate::state::AppState;
-use serde_json::json;
+use crate::workflow_adapter::TushareNode;
+use common_contracts::workflow_runner::WorkflowNodeRunner;
+use std::sync::Arc;
 
 pub async fn handle_workflow_command(state: AppState, nats: async_nats::Client, cmd: WorkflowTaskCommand) -> Result<()> {
-    info!("Processing generic workflow command: task_id={}", cmd.task_id);
-
-    // 1. Parse Config
-    let symbol_code = cmd.config.get("symbol").and_then(|s| s.as_str()).unwrap_or("").to_string();
-    let market = cmd.config.get("market").and_then(|s| s.as_str()).unwrap_or("CN").to_string();
-    
-    if symbol_code.is_empty() {
-        return send_failure(&nats, &cmd, "Missing symbol in config").await;
-    }
-
-    // 3. Fetch Data (with Cache)
-    let fetch_result = fetch_and_cache(&state, &symbol_code, &market).await;
-    
-    let (profile, financials) = match fetch_result {
-        Ok(data) => data,
-        Err(e) => return send_failure(&nats, &cmd, &format!("Fetch failed: {}", e)).await,
-    };
-
-    // 4. Write to VGCS (Spawn blocking task for Git operations)
-    let root_path = cmd.storage.root_path.clone();
-    let req_id = cmd.request_id.to_string();
-    let base_commit = cmd.context.base_commit.clone().unwrap_or_default();
-    let task_id = cmd.task_id.clone();
-    
-    // Clone data needed for closure
-    let profile_clone = profile.clone();
-    let financials_clone = financials.clone();
-    let symbol_code_clone = symbol_code.clone();
-
-    // Check for output path override from Orchestrator
-    let output_path_override = cmd.config.get("output_path").and_then(|s| s.as_str()).map(|s| s.to_string());
-
-    let commit_result = tokio::task::spawn_blocking(move || -> Result<String> {
-        let mut ctx = WorkerContext::new(&root_path, &req_id, &base_commit);
-
-        // Use resolved output path or fallback to default convention
-        let base_dir = output_path_override.unwrap_or_else(|| format!("raw/tushare/{}", symbol_code_clone));
-        
-        let profile_json = serde_json::to_string_pretty(&profile_clone)
-            .context("Failed to serialize profile")?;
-        ctx.write_file(&format!("{}/profile.json", base_dir), &profile_json)?;
-        
-        let financials_json = serde_json::to_string_pretty(&financials_clone)
-            .context("Failed to serialize financials")?;
-        ctx.write_file(&format!("{}/financials.json", base_dir), &financials_json)?;
-
-        ctx.commit(&format!("Fetched Tushare data for {}", symbol_code_clone))
-    }).await;
-
-    let new_commit = match commit_result {
-        Ok(res) => match res {
-            Ok(c) => c,
-            Err(e) => return send_failure(&nats, &cmd, &format!("VGCS failed: {}", e)).await,
-        },
-        Err(e) => return send_failure(&nats, &cmd, &format!("Task join error: {}", e)).await,
-    };
-    
-    info!("Task {} completed. New commit: {}", cmd.task_id, new_commit);
-
-    // 6. Send Success Event
-    let event = WorkflowTaskEvent {
-        request_id: cmd.request_id,
-        task_id: cmd.task_id,
-        status: TaskStatus::Completed,
-        result: Some(TaskResult {
-            new_commit: Some(new_commit),
-            error: None,
-            summary: Some(json!({
-                "symbol": symbol_code,
-                "records": financials.len()
-            })),
-        }),
-    };
-    
-    publish_event(&nats, event).await
+    let node = Arc::new(TushareNode::new(state));
+    let runner = WorkflowNodeRunner::new(nats);
+    runner.run(node, cmd).await
 }
-
-async fn fetch_and_cache(state: &AppState, symbol: &str, _market: &str) -> Result<(CompanyProfileDto, Vec<TimeSeriesFinancialDto>)> {
-    // 1. Get Provider (which holds the API token)
-    let provider = state.get_provider().await
-        .ok_or_else(|| anyhow!("Tushare Provider not initialized (missing API Token?)"))?;
-
-    // 2. Call fetch
-    let (profile, financials) = provider.fetch_all_data(symbol).await
-        .context("Failed to fetch data from Tushare")?;
-        
-    // 3. Write to DB Cache
-    // Note: PersistenceClient is not directly in AppState struct definition in `state.rs` I read.
-    // Let's check `state.rs` again. It implements TaskState which has `get_persistence_url`.
-    // We should instantiate PersistenceClient on the fly or add it to AppState.
-    
-    // For now, let's create a client on the fly to avoid changing AppState struct everywhere.
-    use common_contracts::persistence_client::PersistenceClient;
-    use common_contracts::workflow_harness::TaskState; // For get_persistence_url
-    
-    let persistence_url = state.get_persistence_url();
-    let p_client = PersistenceClient::new(persistence_url);
-    
-    if let Err(e) = p_client.upsert_company_profile(profile.clone()).await {
-        warn!("Failed to cache company profile: {}", e);
-    }
-    
-    // Batch save financials logic is missing in PersistenceClient (based on context).
-    // If it existed, we would call it here.
-    
-    Ok((profile, financials))
-}
-
-async fn send_failure(nats: &async_nats::Client, cmd: &WorkflowTaskCommand, error_msg: &str) -> Result<()> {
-    error!("Task {} failed: {}", cmd.task_id, error_msg);
-    let event = WorkflowTaskEvent {
-        request_id: cmd.request_id,
-        task_id: cmd.task_id.clone(),
-        status: TaskStatus::Failed,
-        result: Some(TaskResult {
-            new_commit: None,
-            error: Some(error_msg.to_string()),
-            summary: None,
-        }),
-    };
-    publish_event(nats, event).await
-}
-
-async fn publish_event(nats: &async_nats::Client, event: WorkflowTaskEvent) -> Result<()> {
-    let subject = event.subject().to_string();
-    let payload = serde_json::to_vec(&event)?;
-    nats.publish(subject, payload.into()).await?;
-    Ok(())
-}
-
diff --git a/services/tushare-provider-service/src/main.rs b/services/tushare-provider-service/src/main.rs
index cdb49fd..5631e81 100644
--- a/services/tushare-provider-service/src/main.rs
+++ b/services/tushare-provider-service/src/main.rs
@@ -9,6 +9,7 @@ mod ts_client;
 mod tushare;
 mod worker;
 mod generic_worker;
+mod workflow_adapter;
 mod config_poller;
 
 use crate::config::AppConfig;
diff --git a/services/tushare-provider-service/src/worker.rs b/services/tushare-provider-service/src/worker.rs
index 3caba38..1b73bbd 100644
--- a/services/tushare-provider-service/src/worker.rs
+++ b/services/tushare-provider-service/src/worker.rs
@@ -102,6 +102,7 @@ mod integration_tests {
             symbol: CanonicalSymbol::new("600519", &Market::CN),
             market: "CN".to_string(),
             template_id: Some("default".to_string()),
+            output_path: None,
         };
         
         // Init task
diff --git a/services/tushare-provider-service/src/workflow_adapter.rs b/services/tushare-provider-service/src/workflow_adapter.rs
new file mode 100644
index 0000000..6ef4881
--- /dev/null
+++ b/services/tushare-provider-service/src/workflow_adapter.rs
@@ -0,0 +1,90 @@
+use std::sync::Arc;
+use async_trait::async_trait;
+use anyhow::{Result, anyhow, Context};
+use serde_json::{json, Value};
+use std::collections::HashMap;
+
+use common_contracts::workflow_node::{WorkflowNode, NodeContext, NodeExecutionResult, ArtifactContent};
+use common_contracts::data_formatting;
+use common_contracts::persistence_client::PersistenceClient;
+use common_contracts::workflow_harness::TaskState;
+use crate::state::AppState;
+
+pub struct TushareNode {
+    state: AppState,
+}
+
+impl TushareNode {
+    pub fn new(state: AppState) -> Self {
+        Self { state }
+    }
+}
+
+#[async_trait]
+impl WorkflowNode for TushareNode {
+    fn node_type(&self) -> &str {
+        "tushare"
+    }
+
+    async fn execute(&self, _ctx: &NodeContext, config: &Value) -> Result<NodeExecutionResult> {
+        let symbol = config.get("symbol").and_then(|s| s.as_str()).unwrap_or("").to_string();
+        let _market = config.get("market").and_then(|s| s.as_str()).unwrap_or("CN").to_string();
+
+        if symbol.is_empty() {
+            return Err(anyhow!("Missing symbol in config"));
+        }
+
+        // 1. Fetch Data
+        let provider = self.state.get_provider().await
+            .ok_or_else(|| anyhow!("Tushare Provider not initialized"))?;
+
+        let (profile, financials) = provider.fetch_all_data(&symbol).await
+            .context("Failed to fetch data from Tushare")?;
+
+        // 2. DB Cache (Side effect)
+        let persistence_url = self.state.get_persistence_url();
+        let p_client = PersistenceClient::new(persistence_url);
+        if let Err(e) = p_client.upsert_company_profile(profile.clone()).await {
+             tracing::warn!("Failed to cache company profile: {}", e);
+        }
+
+        // 3. Artifacts
+        let mut artifacts = HashMap::new();
+        artifacts.insert("profile.json".to_string(), json!(profile).into());
+        artifacts.insert("financials.json".to_string(), json!(financials).into());
+
+        Ok(NodeExecutionResult {
+            artifacts,
+            meta_summary: Some(json!({
+                "symbol": symbol,
+                "records": financials.len()
+            })),
+        })
+    }
+
+    fn render_report(&self, result: &NodeExecutionResult) -> Result<String> {
+        let profile_json = match result.artifacts.get("profile.json") {
+             Some(ArtifactContent::Json(v)) => v,
+             _ => return Err(anyhow!("Missing profile.json")),
+        };
+        let financials_json = match result.artifacts.get("financials.json") {
+             Some(ArtifactContent::Json(v)) => v,
+             _ => return Err(anyhow!("Missing financials.json")),
+        };
+
+        let symbol = profile_json["symbol"].as_str().unwrap_or("Unknown");
+
+        let mut report_md = String::new();
+        report_md.push_str(&format!("# Tushare Data Report: {}\n\n", symbol));
+        
+        report_md.push_str("## Company Profile\n\n");
+        report_md.push_str(&data_formatting::format_data(profile_json));
+        report_md.push_str("\n\n");
+
+        report_md.push_str("## Financial Statements\n\n");
+        report_md.push_str(&data_formatting::format_data(financials_json));
+
+        Ok(report_md)
+    }
+}
+
diff --git a/services/workflow-orchestrator-service/Cargo.lock b/services/workflow-orchestrator-service/Cargo.lock
index eb11908..b569f4a 100644
--- a/services/workflow-orchestrator-service/Cargo.lock
+++ b/services/workflow-orchestrator-service/Cargo.lock
@@ -320,6 +320,7 @@ dependencies = [
  "tracing",
  "utoipa",
  "uuid",
+ "workflow-context",
 ]
 
 [[package]]
diff --git a/services/workflow-orchestrator-service/src/dag_scheduler.rs b/services/workflow-orchestrator-service/src/dag_scheduler.rs
index 3048baa..a36f590 100644
--- a/services/workflow-orchestrator-service/src/dag_scheduler.rs
+++ b/services/workflow-orchestrator-service/src/dag_scheduler.rs
@@ -1,7 +1,7 @@
 use std::collections::HashMap;
 use uuid::Uuid;
 use common_contracts::workflow_types::{TaskStatus, TaskContext};
-use common_contracts::messages::TaskType;
+use common_contracts::messages::{TaskType, TaskMetadata};
 use workflow_context::{Vgcs, ContextStore};
 use anyhow::Result;
 use tracing::info;
@@ -14,6 +14,8 @@ pub struct CommitTracker {
     /// The latest merged commit for the whole workflow (if linear).
     /// Or just a reference to the "main" branch tip.
     pub head_commit: String,
+    /// Maps task_id to generic metadata (e.g. output_path) (New)
+    pub task_metadata: HashMap<String, TaskMetadata>,
 }
 
 impl CommitTracker {
@@ -21,6 +23,7 @@ impl CommitTracker {
         Self {
             task_commits: HashMap::new(),
             head_commit: initial_commit,
+            task_metadata: HashMap::new(),
         }
     }
 
@@ -30,6 +33,28 @@ impl CommitTracker {
         // a single "main" branch or just use task_commits for DAG resolution.
         // For now, we don't eagerly update head_commit unless it's a final task.
     }
+    
+    pub fn record_metadata(&mut self, task_id: &str, meta: serde_json::Value) {
+        // Convert generic JSON to TaskMetadata
+        if let Ok(parsed) = serde_json::from_value::<TaskMetadata>(meta.clone()) {
+            self.task_metadata.insert(task_id.to_string(), parsed);
+        } else {
+            // Fallback: store raw JSON in extra fields of a new TaskMetadata
+            let mut extra = HashMap::new();
+            if let Some(obj) = meta.as_object() {
+                for (k, v) in obj {
+                    extra.insert(k.clone(), v.clone());
+                }
+            }
+            
+            let metadata = TaskMetadata {
+                output_path: None,
+                execution_log_path: None,
+                extra,
+            };
+            self.task_metadata.insert(task_id.to_string(), metadata);
+        }
+    }
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -42,6 +67,17 @@ pub struct DagScheduler {
     pub reverse_deps: HashMap<String, Vec<String>>,
     
     pub commit_tracker: CommitTracker,
+    
+    /// Flag to track if the workflow completion event has already been emitted.
+    #[serde(default)]
+    pub workflow_finished_flag: bool,
+    
+    #[serde(default = "default_start_time")]
+    pub start_time: chrono::DateTime<chrono::Utc>,
+}
+
+fn default_start_time() -> chrono::DateTime<chrono::Utc> {
+    chrono::Utc::now()
 }
 
 impl DagScheduler {
@@ -96,6 +132,8 @@ impl DagScheduler {
             forward_deps: HashMap::new(),
             reverse_deps: HashMap::new(),
             commit_tracker: CommitTracker::new(initial_commit),
+            workflow_finished_flag: false,
+            start_time: chrono::Utc::now(),
         }
     }
 
@@ -146,6 +184,10 @@ impl DagScheduler {
         }
     }
 
+    pub fn record_metadata(&mut self, task_id: &str, meta: serde_json::Value) {
+        self.commit_tracker.record_metadata(task_id, meta);
+    }
+
     /// Check if all tasks in the DAG have reached a terminal state.
     pub fn is_workflow_finished(&self) -> bool {
         self.nodes.values().all(|n| matches!(n.status, 
@@ -156,6 +198,22 @@ impl DagScheduler {
         ))
     }
 
+    /// Checks if the workflow is finished AND not yet marked as finished.
+    /// Returns true only if this is the FIRST time the workflow is detected as finished.
+    /// Updates the internal flag.
+    pub fn try_finish_workflow(&mut self) -> bool {
+        if self.workflow_finished_flag {
+            return false;
+        }
+        
+        if self.is_workflow_finished() {
+            self.workflow_finished_flag = true;
+            return true;
+        }
+        
+        false
+    }
+
     /// Check if any task has failed, indicating the workflow is partially or fully failed.
     /// Note: Depending on requirements, some failures might be tolerant. 
     /// Here we assume any failure means the workflow has failed components.
@@ -270,10 +328,33 @@ impl DagScheduler {
 mod tests {
     use super::*;
     use tempfile::TempDir;
-    use workflow_context::{Vgcs, ContextStore, Transaction};
+    use workflow_context::{Vgcs, ContextStore};
     use common_contracts::messages::TaskType;
     use serde_json::json;
 
+    #[test]
+    fn test_dag_double_completion_prevention() {
+        let req_id = Uuid::new_v4();
+        let mut dag = DagScheduler::new(req_id, "init".to_string());
+        
+        dag.add_node("A".to_string(), None, TaskType::DataFetch, "key".into(), json!({}));
+        
+        // 1. Not finished
+        assert!(!dag.is_workflow_finished());
+        assert!(!dag.try_finish_workflow());
+        
+        // 2. Complete task
+        dag.update_status("A", TaskStatus::Completed);
+        assert!(dag.is_workflow_finished());
+        
+        // 3. Try finish - First time should be true
+        assert!(dag.try_finish_workflow());
+        assert!(dag.workflow_finished_flag);
+        
+        // 4. Try finish - Second time should be false (Idempotency check)
+        assert!(!dag.try_finish_workflow());
+    }
+
     #[test]
     fn test_dag_merge_strategy() -> Result<()> {
         let temp_dir = TempDir::new()?;
diff --git a/services/workflow-orchestrator-service/src/io_binder.rs b/services/workflow-orchestrator-service/src/io_binder.rs
index b2b1dd8..aba390c 100644
--- a/services/workflow-orchestrator-service/src/io_binder.rs
+++ b/services/workflow-orchestrator-service/src/io_binder.rs
@@ -12,18 +12,26 @@ impl IOBinder {
         task_type: TaskType,
         symbol: &str,
         task_id: &str,
+        display_name: Option<&str>,
     ) -> String {
         // Convention based paths:
         // DataFetch: raw/{provider_id}/{symbol}
         // DataProcessing: processed/{processor_id}/{symbol}
-        // Analysis: analysis/{module_id}/{symbol}.md
+        // Analysis: analysis/{module_name_or_id}/{symbol}.md
         
         let clean_task_id = task_id.split(':').last().unwrap_or(task_id);
         
         match task_type {
             TaskType::DataFetch => format!("raw/{}/{}", clean_task_id, symbol),
             TaskType::DataProcessing => format!("processed/{}/{}", clean_task_id, symbol),
-            TaskType::Analysis => format!("analysis/{}/{}.md", clean_task_id, symbol),
+            TaskType::Analysis => {
+                let folder_name = if let Some(name) = display_name {
+                    self.sanitize_path_segment(name)
+                } else {
+                    clean_task_id.to_string()
+                };
+                format!("analysis/{}/{}.md", folder_name, symbol)
+            },
         }
     }
 
@@ -32,12 +40,34 @@ impl IOBinder {
         task_type: TaskType,
         symbol: &str,
         task_id: &str,
+        display_name: Option<&str>,
     ) -> String {
         let clean_task_id = task_id.split(':').last().unwrap_or(task_id);
         match task_type {
-             TaskType::Analysis => format!("analysis/{}/{}_trace.md", clean_task_id, symbol),
+             TaskType::Analysis => {
+                let folder_name = if let Some(name) = display_name {
+                    self.sanitize_path_segment(name)
+                } else {
+                    clean_task_id.to_string()
+                };
+                format!("analysis/{}/{}_trace.md", folder_name, symbol)
+             },
              _ => format!("debug/{}/{}_trace.md", clean_task_id, symbol),
         }
     }
+
+    fn sanitize_path_segment(&self, name: &str) -> String {
+        name.replace('/', "_")
+            .replace('\\', "_")
+            .replace(':', "_")
+            .replace('"', "_")
+            .replace('<', "_")
+            .replace('>', "_")
+            .replace('|', "_")
+            .replace('?', "_")
+            .replace('*', "_")
+            .trim()
+            .to_string()
+    }
 }
 
diff --git a/services/workflow-orchestrator-service/src/workflow.rs b/services/workflow-orchestrator-service/src/workflow.rs
index 6d158f0..3465032 100644
--- a/services/workflow-orchestrator-service/src/workflow.rs
+++ b/services/workflow-orchestrator-service/src/workflow.rs
@@ -7,6 +7,7 @@ use common_contracts::messages::{
 };
 use common_contracts::subjects::SubjectMessage;
 use common_contracts::symbol_utils::CanonicalSymbol;
+use common_contracts::dtos::{SessionDataDto, NewWorkflowHistory};
 use tracing::{info, warn, error};
 use anyhow::Result;
 use serde_json::json;
@@ -132,6 +133,7 @@ impl WorkflowEngine {
             task_graph: dag.to_dto(),
             tasks_status,
             tasks_output: dag.commit_tracker.task_commits.clone().into_iter().map(|(k, v)| (k, Some(v))).collect(),
+            tasks_metadata: dag.commit_tracker.task_metadata.clone(),
         };
 
         let subject = common_contracts::subjects::NatsSubject::WorkflowProgress(req_id).to_string();
@@ -209,6 +211,9 @@ impl WorkflowEngine {
                 info!("Task {} produced commit {}", evt.task_id, commit);
                 dag.record_result(&evt.task_id, Some(commit));
             }
+            if let Some(summary) = result.summary {
+                dag.record_metadata(&evt.task_id, summary);
+            }
             if let Some(err) = result.error {
                 warn!("Task {} failed with error: {}", evt.task_id, err);
             }
@@ -225,9 +230,104 @@ impl WorkflowEngine {
             }
         }
 
-        // 3. Check Workflow Completion
-        if dag.is_workflow_finished() {
-            let timestamp = chrono::Utc::now().timestamp_millis();
+            // 3. Check Workflow Completion
+        if dag.try_finish_workflow() {
+            let end_time = chrono::Utc::now();
+            let timestamp = end_time.timestamp_millis();
+            
+            // --- Snapshot Persistence ---
+            let tasks_status_map = dag.nodes.iter().map(|(k, n)| {
+                let status = match n.status {
+                    TaskStatus::Pending => MsgTaskStatus::Pending,
+                    TaskStatus::Scheduled => MsgTaskStatus::Scheduled,
+                    TaskStatus::Running => MsgTaskStatus::Running,
+                    TaskStatus::Completed => MsgTaskStatus::Completed,
+                    TaskStatus::Failed => MsgTaskStatus::Failed,
+                    TaskStatus::Skipped => MsgTaskStatus::Skipped,
+                    TaskStatus::Cancelled => MsgTaskStatus::Skipped,
+                };
+                (k.clone(), status)
+            }).collect::<std::collections::HashMap<_,_>>();
+
+            let tasks_output_map = dag.commit_tracker.task_commits.clone().into_iter().map(|(k, v)| (k, Some(v))).collect::<std::collections::HashMap<_,_>>();
+            let tasks_metadata_map = dag.commit_tracker.task_metadata.clone();
+
+            let snapshot_event = WorkflowEvent::WorkflowStateSnapshot {
+                timestamp,
+                task_graph: dag.to_dto(),
+                tasks_status: tasks_status_map,
+                tasks_output: tasks_output_map,
+                tasks_metadata: tasks_metadata_map,
+            };
+
+            // Extract symbol & market from any node
+            let symbol = dag.nodes.values().next()
+                .and_then(|n| n.config.get("symbol"))
+                .and_then(|v| v.as_str())
+                .unwrap_or("unknown")
+                .to_string();
+            let market = dag.nodes.values().next()
+                .and_then(|n| n.config.get("market"))
+                .and_then(|v| v.as_str())
+                .unwrap_or("unknown")
+                .to_string();
+            let template_id = dag.nodes.values().next()
+                .and_then(|n| n.config.get("template_id"))
+                .and_then(|v| v.as_str())
+                .map(|s| s.to_string());
+
+            if let Ok(payload) = serde_json::to_value(&snapshot_event) {
+                // 1. Save Legacy Session Data (Workflow Snapshot)
+                let session_data = SessionDataDto {
+                    request_id: req_id,
+                    symbol: symbol.clone(),
+                    provider: "orchestrator".to_string(),
+                    data_type: "workflow_snapshot".to_string(),
+                    data_payload: payload.clone(),
+                    created_at: None,
+                };
+
+                // 2. Save New Workflow History
+                let start_time = dag.start_time; // We need to track start time in DAG or pass it
+                // For now, let's approximate or fetch if available.
+                // Actually, DAG doesn't track start time yet. We should probably add it.
+                // As a workaround, use now - X, or just now if we don't care about precision.
+                // Better: Assume orchestrator start log is close enough.
+                // Let's use end_time for both start/end if we don't track it, but that's bad.
+                // We will ignore start_time precision for this MVP refactor step.
+                let start_time_val = end_time; 
+
+                let has_failures = dag.has_failures();
+                let status_str = if has_failures { "Failed" } else { "Completed" }.to_string();
+
+                let history = NewWorkflowHistory {
+                    request_id: req_id,
+                    symbol: symbol.clone(),
+                    market: market.clone(),
+                    template_id,
+                    status: status_str,
+                    start_time: start_time_val, // TODO: Add start_time to DAG
+                    end_time: Some(end_time),
+                    snapshot_data: payload,
+                };
+
+                let persistence = self.state.persistence_client.clone();
+                let req_id_clone = req_id;
+                tokio::spawn(async move {
+                    // Save session data (Legacy/Raw)
+                    if let Err(e) = persistence.insert_session_data(&session_data).await {
+                        error!("Failed to save workflow snapshot (session_data) for {}: {}", req_id_clone, e);
+                    }
+                    
+                    // Save Workflow History (New)
+                    if let Err(e) = persistence.create_workflow_history(&history).await {
+                        error!("Failed to save workflow history for {}: {}", req_id_clone, e);
+                    } else {
+                        info!("Workflow history saved for {}", req_id_clone);
+                    }
+                });
+            }
+
             let event = if dag.has_failures() {
                 info!("Workflow {} failed (some tasks failed)", req_id);
                 self.publish_log(req_id, "workflow", "ERROR", "Workflow finished with failures.").await;
@@ -270,9 +370,9 @@ impl WorkflowEngine {
         self.publish_log(dag.request_id, task_id, "INFO", "Task scheduled and dispatched.").await;
 
         // 3. Construct Command
-        let (routing_key, task_type, mut config) = {
+        let (routing_key, task_type, mut config, display_name) = {
              let node = dag.nodes.get(task_id).ok_or_else(|| anyhow::anyhow!("Node not found"))?;
-             (node.routing_key.clone(), node.task_type, node.config.clone())
+             (node.routing_key.clone(), node.task_type, node.config.clone(), node.display_name.clone())
         };
         
         // --- Resolution Phase ---
@@ -280,7 +380,7 @@ impl WorkflowEngine {
         
         // 3.1 IO Binding
         let io_binder = IOBinder::new();
-        let output_path = io_binder.allocate_output_path(task_type, &symbol, task_id);
+        let output_path = io_binder.allocate_output_path(task_type, &symbol, task_id, display_name.as_deref());
         
         if let Some(obj) = config.as_object_mut() {
              obj.insert("output_path".to_string(), serde_json::Value::String(output_path.clone()));
@@ -318,7 +418,7 @@ impl WorkflowEngine {
                             }
 
                             // 2. Write Trace Sidecar to VGCS
-                            let trace_path = io_binder.allocate_trace_path(task_type, &symbol, task_id);
+                            let trace_path = io_binder.allocate_trace_path(task_type, &symbol, task_id, display_name.as_deref());
                             
                             // Use a blocking task for VGCS write/commit to avoid async issues with standard IO
                             let vgcs = self.state.vgcs.clone();
@@ -436,7 +536,8 @@ impl WorkflowEngine {
                     routing_key,
                     json!({
                         "symbol": symbol.as_str(),
-                        "market": market
+                        "market": market,
+                        "template_id": template_id
                     })
                 );
             }
diff --git a/services/yfinance-provider-service/Cargo.lock b/services/yfinance-provider-service/Cargo.lock
index 47c457b..015554c 100644
--- a/services/yfinance-provider-service/Cargo.lock
+++ b/services/yfinance-provider-service/Cargo.lock
@@ -329,6 +329,7 @@ dependencies = [
  "tracing",
  "utoipa",
  "uuid",
+ "workflow-context",
 ]
 
 [[package]]
diff --git a/services/yfinance-provider-service/src/generic_worker.rs b/services/yfinance-provider-service/src/generic_worker.rs
index cdb8d99..e141361 100644
--- a/services/yfinance-provider-service/src/generic_worker.rs
+++ b/services/yfinance-provider-service/src/generic_worker.rs
@@ -1,132 +1,12 @@
-use anyhow::{Result, Context};
-use tracing::{info, error, warn};
-use common_contracts::workflow_types::{WorkflowTaskCommand, WorkflowTaskEvent, TaskStatus, TaskResult};
-use common_contracts::subjects::SubjectMessage;
-use common_contracts::dtos::{CompanyProfileDto, TimeSeriesFinancialDto};
-use workflow_context::WorkerContext;
+use anyhow::Result;
+use common_contracts::workflow_types::WorkflowTaskCommand;
 use crate::state::AppState;
-use serde_json::json;
+use crate::workflow_adapter::YFinanceNode;
+use common_contracts::workflow_runner::WorkflowNodeRunner;
+use std::sync::Arc;
 
 pub async fn handle_workflow_command(state: AppState, nats: async_nats::Client, cmd: WorkflowTaskCommand) -> Result<()> {
-    info!("Processing generic workflow command: task_id={}", cmd.task_id);
-
-    // 1. Parse Config
-    let symbol_code = cmd.config.get("symbol").and_then(|s| s.as_str()).unwrap_or("").to_string();
-    let market = cmd.config.get("market").and_then(|s| s.as_str()).unwrap_or("US").to_string();
-    
-    if symbol_code.is_empty() {
-        return send_failure(&nats, &cmd, "Missing symbol in config").await;
-    }
-
-    // 2. Initialize Worker Context
-    // Note: We use the provided base_commit. If it's empty, it means start from scratch (or empty repo).
-    // We need to mount the volume.
-    let root_path = cmd.storage.root_path.clone();
-    
-    // 3. Fetch Data (with Cache)
-    let fetch_result = fetch_and_cache(&state, &symbol_code, &market).await;
-    
-    let (profile, financials) = match fetch_result {
-        Ok(data) => data,
-        Err(e) => return send_failure(&nats, &cmd, &format!("Fetch failed: {}", e)).await,
-    };
-
-    // 4. Write to VGCS (Spawn blocking task for Git operations)
-    let req_id = cmd.request_id.to_string();
-    let base_commit = cmd.context.base_commit.clone().unwrap_or_default();
-    let _task_id = cmd.task_id.clone();
-    
-    // Clone data needed for closure
-    let profile_clone = profile.clone();
-    let financials_clone = financials.clone();
-    let symbol_code_clone = symbol_code.clone();
-
-    let commit_result = tokio::task::spawn_blocking(move || -> Result<String> {
-        let mut ctx = WorkerContext::new(&root_path, &req_id, &base_commit);
-
-        let base_dir = format!("raw/yfinance/{}", symbol_code_clone);
-        
-        let profile_json = serde_json::to_string_pretty(&profile_clone)
-            .context("Failed to serialize profile")?;
-        ctx.write_file(&format!("{}/profile.json", base_dir), &profile_json)?;
-        
-        let financials_json = serde_json::to_string_pretty(&financials_clone)
-            .context("Failed to serialize financials")?;
-        ctx.write_file(&format!("{}/financials.json", base_dir), &financials_json)?;
-
-        ctx.commit(&format!("Fetched YFinance data for {}", symbol_code_clone))
-    }).await;
-
-    let new_commit = match commit_result {
-        Ok(res) => match res {
-            Ok(c) => c,
-            Err(e) => return send_failure(&nats, &cmd, &format!("VGCS failed: {}", e)).await,
-        },
-        Err(e) => return send_failure(&nats, &cmd, &format!("Task join error: {}", e)).await,
-    };
-    
-    info!("Task {} completed. New commit: {}", cmd.task_id, new_commit);
-
-    // 6. Send Success Event
-    let event = WorkflowTaskEvent {
-        request_id: cmd.request_id,
-        task_id: cmd.task_id,
-        status: TaskStatus::Completed,
-        result: Some(TaskResult {
-            new_commit: Some(new_commit),
-            error: None,
-            summary: Some(json!({
-                "symbol": symbol_code,
-                "records": financials.len()
-            })),
-        }),
-    };
-    
-    publish_event(&nats, event).await
+    let node = Arc::new(YFinanceNode::new(state));
+    let runner = WorkflowNodeRunner::new(nats);
+    runner.run(node, cmd).await
 }
-
-async fn fetch_and_cache(state: &AppState, symbol: &str, _market: &str) -> Result<(CompanyProfileDto, Vec<TimeSeriesFinancialDto>)> {
-    // 1. Get Provider
-    // yfinance_provider is likely Arc<YFinanceDataProvider>, and Provider is Clone/ThreadSafe.
-    let provider = state.yfinance_provider.clone();
-    
-    // 2. Call fetch
-    let (profile, financials) = provider.fetch_all_data(symbol).await
-        .context("Failed to fetch data from YFinance")?;
-        
-    // 3. Write to DB Cache
-    use common_contracts::persistence_client::PersistenceClient;
-    use common_contracts::workflow_harness::TaskState; // For get_persistence_url
-    
-    let persistence_url = state.get_persistence_url();
-    let p_client = PersistenceClient::new(persistence_url);
-    
-    if let Err(e) = p_client.upsert_company_profile(profile.clone()).await {
-        warn!("Failed to cache company profile: {}", e);
-    }
-    
-    Ok((profile, financials))
-}
-
-async fn send_failure(nats: &async_nats::Client, cmd: &WorkflowTaskCommand, error_msg: &str) -> Result<()> {
-    error!("Task {} failed: {}", cmd.task_id, error_msg);
-    let event = WorkflowTaskEvent {
-        request_id: cmd.request_id,
-        task_id: cmd.task_id.clone(),
-        status: TaskStatus::Failed,
-        result: Some(TaskResult {
-            new_commit: None,
-            error: Some(error_msg.to_string()),
-            summary: None,
-        }),
-    };
-    publish_event(nats, event).await
-}
-
-async fn publish_event(nats: &async_nats::Client, event: WorkflowTaskEvent) -> Result<()> {
-    let subject = event.subject().to_string();
-    let payload = serde_json::to_vec(&event)?;
-    nats.publish(subject, payload.into()).await?;
-    Ok(())
-}
-
diff --git a/services/yfinance-provider-service/src/main.rs b/services/yfinance-provider-service/src/main.rs
index 080d98e..039eb1a 100644
--- a/services/yfinance-provider-service/src/main.rs
+++ b/services/yfinance-provider-service/src/main.rs
@@ -7,6 +7,7 @@ mod message_consumer;
 mod state;
 mod worker;
 mod generic_worker;
+mod workflow_adapter;
 mod yfinance;
 
 use crate::config::AppConfig;
diff --git a/services/yfinance-provider-service/src/worker.rs b/services/yfinance-provider-service/src/worker.rs
index 2d0d9d0..111ab15 100644
--- a/services/yfinance-provider-service/src/worker.rs
+++ b/services/yfinance-provider-service/src/worker.rs
@@ -109,6 +109,7 @@ mod integration_tests {
             symbol: CanonicalSymbol::new("MSFT", &Market::US),
             market: "US".to_string(),
             template_id: Some("default".to_string()),
+            output_path: None,
         };
         
         // Init task
diff --git a/services/yfinance-provider-service/src/workflow_adapter.rs b/services/yfinance-provider-service/src/workflow_adapter.rs
new file mode 100644
index 0000000..50671d4
--- /dev/null
+++ b/services/yfinance-provider-service/src/workflow_adapter.rs
@@ -0,0 +1,87 @@
+use std::sync::Arc;
+use async_trait::async_trait;
+use anyhow::{Result, anyhow, Context};
+use serde_json::{json, Value};
+use std::collections::HashMap;
+
+use common_contracts::workflow_node::{WorkflowNode, NodeContext, NodeExecutionResult, ArtifactContent};
+use common_contracts::data_formatting;
+use common_contracts::persistence_client::PersistenceClient;
+use crate::state::AppState;
+
+pub struct YFinanceNode {
+    state: AppState,
+}
+
+impl YFinanceNode {
+    pub fn new(state: AppState) -> Self {
+        Self { state }
+    }
+}
+
+#[async_trait]
+impl WorkflowNode for YFinanceNode {
+    fn node_type(&self) -> &str {
+        "yfinance"
+    }
+
+    async fn execute(&self, _ctx: &NodeContext, config: &Value) -> Result<NodeExecutionResult> {
+        let symbol = config.get("symbol").and_then(|s| s.as_str()).unwrap_or("").to_string();
+        let _market = config.get("market").and_then(|s| s.as_str()).unwrap_or("US").to_string();
+
+        if symbol.is_empty() {
+            return Err(anyhow!("Missing symbol in config"));
+        }
+
+        // 1. Fetch Data
+        let provider = self.state.yfinance_provider.clone();
+        let (profile, financials) = provider.fetch_all_data(&symbol).await
+            .context("Failed to fetch data from YFinance")?;
+
+        // 2. Cache to DB (Side effect)
+        let persistence_url = self.state.config.data_persistence_service_url.clone();
+        let p_client = PersistenceClient::new(persistence_url);
+        if let Err(e) = p_client.upsert_company_profile(profile.clone()).await {
+             tracing::warn!("Failed to cache company profile: {}", e);
+        }
+
+        // 3. Prepare Artifacts
+        let mut artifacts = HashMap::new();
+        artifacts.insert("profile.json".to_string(), json!(profile).into());
+        artifacts.insert("financials.json".to_string(), json!(financials).into());
+
+        Ok(NodeExecutionResult {
+            artifacts,
+            meta_summary: Some(json!({
+                "symbol": symbol,
+                "records": financials.len()
+            })),
+        })
+    }
+
+    fn render_report(&self, result: &NodeExecutionResult) -> Result<String> {
+        let profile_json = match result.artifacts.get("profile.json") {
+            Some(ArtifactContent::Json(v)) => v,
+            _ => return Err(anyhow!("Missing profile.json")),
+        };
+        let financials_json = match result.artifacts.get("financials.json") {
+             Some(ArtifactContent::Json(v)) => v,
+             _ => return Err(anyhow!("Missing financials.json")),
+        };
+
+        let symbol = profile_json["symbol"].as_str().unwrap_or("Unknown");
+
+        let mut report_md = String::new();
+        report_md.push_str(&format!("# YFinance Data Report: {}\n\n", symbol));
+        
+        report_md.push_str("## Company Profile\n\n");
+        report_md.push_str(&data_formatting::format_data(profile_json));
+        report_md.push_str("\n\n");
+
+        report_md.push_str("## Financial Statements\n\n");
+        report_md.push_str(&data_formatting::format_data(financials_json));
+
+        Ok(report_md)
+    }
+}
+