chore: 同步 v5.0 基础设施完善到 v5.1

从 v5.0 cherry-pick 的开源项目基础设施改进:

新增配置文件:
- .editorconfig, .gitattributes, .prettierrc, .markdownlint.json
- commitlint.config.js

新增 GitHub 社区文件:
- .github/dependabot.yml — 依赖自动更新
- .github/CODEOWNERS — 自动 PR 审查分配
- .github/FUNDING.yml — 开源赞助入口

新增文档:
- ROADMAP.md — 路线图
- SUPPORT.md — 帮助指南
- docs/screenshots/ — 应用截图

新增 Git Hooks:
- .husky/pre-commit — lint-staged 自动格式化+修复
- .husky/commit-msg — commitlint 校验

CI 强化:
- 新增 Prettier 格式检查
- 新增 Vitest 覆盖率 + Codecov 上报
- 保留 v5.1 已有的 rust-cache + jsdom 全局环境

修复:
- index.html 标题 v4.0 → v5.1
- PathEditDialog set-state-in-effect 改用 useRef prevOpen 守卫
- merge-preview.test.tsx no-explicit-any 修复
- 所有 TS/TSX 文件 Prettier 格式化统一

v5.1 保留特性:
- @tanstack/react-virtual 虚拟滚动
- jsdom 全局测试环境
- Swatinem/rust-cache CI 加速
- 105 测试全部通过

package.json

@@ -3,17 +3,29 @@
   "private": true,
   "version": "5.1.0",
   "type": "module",
+  "lint-staged": {
+    "*.{ts,tsx}": [
+      "prettier --write",
+      "eslint --fix"
+    ],
+    "*.{json,md,css,html}": [
+      "prettier --write"
+    ]
+  },
   "scripts": {
     "dev": "vite",
     "build": "tsc -b && vite build",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",
-    "format": "cargo fmt",
+    "format": "prettier --write \"src/**/*.{ts,tsx}\" \"tests/**/*.{ts,tsx}\" \"e2e/**/*.ts\"",
+    "format:check": "prettier --check \"src/**/*.{ts,tsx}\" \"tests/**/*.{ts,tsx}\" \"e2e/**/*.ts\"",
+    "format:rust": "cargo fmt",
     "preview": "vite preview",
     "test": "vitest run",
     "test:watch": "vitest",
     "test:coverage": "vitest run --coverage",
-    "test:e2e": "playwright test --config e2e/playwright.config.ts"
+    "test:e2e": "playwright test --config e2e/playwright.config.ts",
+    "prepare": "husky"
   },
   "dependencies": {
     "@tailwindcss/vite": "^4.3.0",
@@ -29,9 +41,12 @@
     "zustand": "^5.0.13"
   },
   "devDependencies": {
+    "@commitlint/cli": "^21.0.2",
+    "@commitlint/config-conventional": "^21.0.2",
     "@eslint/js": "^10.0.1",
     "@playwright/test": "^1.60.0",
     "@tauri-apps/cli": "^2.11.2",
+    "@testing-library/jest-dom": "^6.9.1",
     "@testing-library/react": "^16.3.2",
     "@types/node": "^24.12.3",
     "@types/react": "^19.2.14",
@@ -42,7 +57,10 @@
     "eslint-plugin-react-hooks": "^7.1.1",
     "eslint-plugin-react-refresh": "^0.5.2",
     "globals": "^17.6.0",
+    "husky": "^9.1.7",
     "jsdom": "^29.1.1",
+    "lint-staged": "^16.4.0",
+    "prettier": "^3.8.4",
     "typescript": "~6.0.2",
     "typescript-eslint": "^8.59.2",
     "vite": "^8.0.12",