chore: 添加 .gitignore 配置文件

.gitignore

@@ -1,21 +1,3 @@
-# Maven
-target/
-*.war
-*.jar
-*.ear
-.classpath
-.project
-.settings/
-
-# Node.js
-node_modules/
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-.pnpm-debug.log*
-dist/
-.cache/
-
 # IDE - VSCode
 .vscode/
 *.code-workspace
@@ -27,10 +9,56 @@ dist/
 *.iws
 *.ipr
 
+# Maven
+target/
+*.war
+*.jar
+*.ear
+.classpath
+.project
+.settings/
+
+# Node.js
+node_modules/
+dist/
+.cache/
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
 # Logs
 logs/
 *.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
 
 # OS
 .DS_Store
-Thumbs.db
+Thumbs.db
+
+# Environment
+.env
+.env.local
+.env.*.local
+
+# Editor directories and files
+.idea
+.vscode
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+# Build output
+backend/target/
+frontend/dist/
+frontend/dist-ssr/
+
+# Cursor
+.cursor/
+.cursorrules