Unify code style

(cherry picked from commit b61edc0)

Author: xuyaqist

.editorconfig

@@ -0,0 +1,14 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.{js,jsx,ts,tsx,json}]
+indent_style = space
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false

frontend/.eslintrc.json

@@ -1,6 +1,7 @@
 {
-  "extends": [
-    "next/core-web-vitals",
-    "next/typescript"
-  ]
+  "extends": ["next/core-web-vitals", "next/typescript", "prettier"],
+  "plugins": ["prettier"],
+  "rules": {
+    "prettier/prettier": "error"
+  }
 }

frontend/.prettierignore

@@ -0,0 +1,39 @@
+# Dependencies
+node_modules/
+
+# Build outputs
+.next/
+out/
+dist/
+build/
+
+# Environment files
+.env*
+
+# Logs
+*.log
+
+# Package manager files
+package-lock.json
+yarn.lock
+pnpm-lock.yaml
+
+# IDE files
+.vscode/
+.idea/
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Generated files
+*.d.ts
+!src/**/*.d.ts
+
+# Public assets (usually don't need formatting)
+public/
+
+# Config files that should maintain specific formatting
+tailwind.config.*
+next.config.*
+postcss.config.*

frontend/.prettierrc

@@ -0,0 +1,16 @@
+{
+  "semi": true,
+  "trailingComma": "es5",
+  "singleQuote": false,
+  "printWidth": 80,
+  "tabWidth": 2,
+  "useTabs": false,
+  "bracketSpacing": true,
+  "bracketSameLine": false,
+  "arrowParens": "always",
+  "endOfLine": "auto",
+  "jsxSingleQuote": false,
+  "htmlWhitespaceSensitivity": "css",
+  "proseWrap": "preserve",
+  "quoteProps": "as-needed"
+}

frontend/package.json

@@ -7,8 +7,11 @@
     "build": "next build",
     "start": "NODE_ENV=production node server.js",
     "lint": "next lint",
+    "lint:fix": "next lint --fix",
+    "format": "prettier --write .",
+    "format:check": "prettier --check .",
     "type-check": "tsc --noEmit",
-    "check-all": "npm run type-check && npm run lint && npm run build"
+    "check-all": "npm run type-check && npm run lint && npm run format:check && npm run build"
   },
   "dependencies": {
     "@ant-design/icons": "^6.0.0",
@@ -61,7 +64,7 @@
     "katex": "^0.16.11",
     "lucide-react": "^0.454.0",
     "mermaid": "^11.12.0",
-    "next": "15.5.7",
+    "next": "^15.5.9",
     "next-i18next": "^15.4.2",
     "next-themes": "^0.4.4",
     "react": "18.2.0",
@@ -75,7 +78,7 @@
     "react-markdown": "^8.0.7",
     "react-organizational-chart": "^2.2.1",
     "react-resizable-panels": "^2.1.7",
-    "react-syntax-highlighter": "^15.5.0",
+    "react-syntax-highlighter": "^16.1.0",
     "reactflow": "^11.11.4",
     "recharts": "2.15.0",
     "rehype-katex": "^6.0.3",
@@ -98,7 +101,10 @@
     "@types/react-dom": "18.3.6",
     "eslint": "^9.34.0",
     "eslint-config-next": "15.5.7",
+    "eslint-config-prettier": "^9.1.0",
+    "eslint-plugin-prettier": "^5.1.3",
     "postcss": "^8",
+    "prettier": "^3.2.5",
     "tailwindcss": "^3.4.17",
     "typescript": "5.8.3"
   }