v1.1.0: better-sqlite3→sql.js迁移 + 6项UI/代码修复

迁移:
- better-sqlite3(原生C++) → sql.js(WASM纯JS), 兼容Node 24
- database-service.ts: PreparedStatement包装器保持API兼容
- main.ts: initialize()改为async/await
- 移除@electron/rebuild和@types/better-sqlite3依赖
- 新增.npmrc阿里云镜像加速

UI/代码修复(任务1-6):
1. TerminalView: 清理111行调试日志(645→534行)
2. 设计系统: cyan/slate→accent-blue/dark-*颜色统一(FileRow/TransferItem/Breadcrumb/ContextMenu)
3. StatusBar: 重写接入实时连接状态,三区布局
4. SessionDialog: 私钥浏览按钮添加onClick处理
5. WelcomeView: 真实session数据替换硬编码假数据
6. SFTPView: emoji→Lucide图标(FolderOpen/Upload/Download/Trash2)

构建验证: tsc零错误 + vite build成功(Node 24.14.0)

package.json

@@ -22,25 +22,24 @@
   "dependencies": {
     "@xterm/addon-fit": "^0.10.0",
     "@xterm/xterm": "^5.5.0",
-    "better-sqlite3": "^9.4.0",
     "lucide-react": "^0.294.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "react-router-dom": "^6.21.0",
     "socksv5": "^0.0.6",
+    "sql.js": "^1.11.0",
     "ssh2": "^1.15.0",
     "uuid": "^9.0.1",
     "zmodem-ts": "^1.0.8",
     "zustand": "^4.4.7"
   },
   "devDependencies": {
-    "@electron/rebuild": "^4.0.3",
     "@testing-library/jest-dom": "^6.9.1",
     "@testing-library/react": "^16.3.2",
     "@testing-library/user-event": "^14.6.1",
-    "@types/better-sqlite3": "^7.6.8",
     "@types/react": "^18.2.43",
     "@types/react-dom": "^18.2.17",
+    "@types/sql.js": "^1.4.11",
     "@types/ssh2": "^1.11.18",
     "@types/uuid": "^9.0.7",
     "@typescript-eslint/eslint-plugin": "^6.14.0",