diff --git a/deploy.sh b/deploy.sh
index b6814fe..a6df939 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -13,6 +13,15 @@ trap 'echo -e "${ERROR} 部署失败，请检查上方错误日志。"' ERR
 
 echo -e "${INFO} 开始自动化部署脚本..."
 
+# 0. 拉取最新代码
+echo -e "${INFO} 0/6 拉取最新代码..."
+if git pull; then
+    echo -e "${INFO} 代码拉取成功。"
+else
+    echo -e "${ERROR} git pull 失败，请手动检查。"
+    exit 1
+fi
+
 # 1. 检查并安装系统级依赖
 echo -e "${INFO} 1/6 检查并安装系统依赖..."
 if command -v apt-get &> /dev/null; then
diff --git a/frontend/src/components/ai-discussion-view.tsx b/frontend/src/components/ai-discussion-view.tsx
index 33b9a9d..ee3f794 100644
--- a/frontend/src/components/ai-discussion-view.tsx
+++ b/frontend/src/components/ai-discussion-view.tsx
@@ -1,6 +1,7 @@
 "use client"
 
 import { useState, useEffect, useRef } from "react"
+import { cn, generateUUID } from "@/lib/utils"
 import { HeaderPortal } from "@/components/header-portal"
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
 import { Button } from "@/components/ui/button"
@@ -51,7 +52,7 @@ export function AiDiscussionView({ companyName, symbol, market }: { companyName:
     const [leftInput, setLeftInput] = useState("")
     const [leftLoading, setLeftLoading] = useState(false)
     const [leftGoogleSearch, setLeftGoogleSearch] = useState(false)
-    const [leftSessionId, setLeftSessionId] = useState(crypto.randomUUID())
+    const [leftSessionId, setLeftSessionId] = useState(generateUUID())
 
     // Right Chat State
     const [rightRole, setRightRole] = useState("")
@@ -60,7 +61,7 @@ export function AiDiscussionView({ companyName, symbol, market }: { companyName:
     const [rightInput, setRightInput] = useState("")
     const [rightLoading, setRightLoading] = useState(false)
     const [rightGoogleSearch, setRightGoogleSearch] = useState(false)
-    const [rightSessionId, setRightSessionId] = useState(crypto.randomUUID())
+    const [rightSessionId, setRightSessionId] = useState(generateUUID())
 
     // Load config on mount
     useEffect(() => {
@@ -304,12 +305,12 @@ export function AiDiscussionView({ companyName, symbol, market }: { companyName:
     // Clear Handler - Regenerate Session ID
     const handleClearLeft = () => {
         setLeftMessages([])
-        setLeftSessionId(crypto.randomUUID())
+        setLeftSessionId(generateUUID())
     }
 
     const handleClearRight = () => {
         setRightMessages([])
-        setRightSessionId(crypto.randomUUID())
+        setRightSessionId(generateUUID())
     }
 
     return (
diff --git a/frontend/src/lib/utils.ts b/frontend/src/lib/utils.ts
index bd0c391..1351f1d 100644
--- a/frontend/src/lib/utils.ts
+++ b/frontend/src/lib/utils.ts
@@ -4,3 +4,18 @@ import { twMerge } from "tailwind-merge"
 export function cn(...inputs: ClassValue[]) {
   return twMerge(clsx(inputs))
 }
+
+export function generateUUID(): string {
+  // Check if crypto.randomUUID is available (secure context)
+  if (typeof crypto !== 'undefined' && typeof crypto.randomUUID === 'function') {
+    return crypto.randomUUID()
+  }
+
+  // Fallback for non-secure contexts or older environments
+  // RFC4122 version 4 compliant solution
+  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
+    const r = Math.random() * 16 | 0
+    const v = c === 'x' ? r : (r & 0x3 | 0x8)
+    return v.toString(16)
+  })
+}