chore: 强化代码质量与风格检查体系

ESLint 升级到 recommended-type-checked + stylistic-type-checked，
引入 perfectionist 导入排序和 import 插件导入验证。

Prettier 显式声明全部格式化参数，消除跨环境差异。
TypeScript 启用 noUnusedLocals 和 noPropertyAccessFromIndexSignature。
完善 ignore 列表，排除 .agents/、bun.lock、data/ 等。
引入 husky + lint-staged（pre-commit）+ commitlint（commit-msg）。
更新 DEVELOPMENT.md 代码质量章节。
修复所有新增规则检测到的类型和风格违规。

eslint.config.js

@@ -1,4 +1,6 @@
 import js from "@eslint/js";
+import importPlugin from "eslint-plugin-import";
+import perfectionist from "eslint-plugin-perfectionist";
 import reactHooks from "eslint-plugin-react-hooks";
 import reactRefresh from "eslint-plugin-react-refresh";
 import tseslint from "typescript-eslint";
@@ -14,16 +16,47 @@ export default tseslint.config(
       ".opencode/**",
       ".claude/**",
       ".codex/**",
+      ".agents/**",
+      "bun.lock",
+      "data/**",
     ],
   },
   js.configs.recommended,
-  ...tseslint.configs.recommended,
+  ...tseslint.configs.recommendedTypeChecked,
+  ...tseslint.configs.stylisticTypeChecked,
+  importPlugin.flatConfigs.recommended,
+  importPlugin.flatConfigs.typescript,
+  perfectionist.configs["recommended-natural"],
+  {
+    languageOptions: {
+      parserOptions: {
+        projectService: true,
+        tsconfigRootDir: import.meta.dirname,
+      },
+    },
+    settings: {
+      "import/resolver": { node: true, typescript: true },
+    },
+  },
   {
-    files: ["**/*.{ts,tsx}"],
     rules: {
+      "@typescript-eslint/array-type": ["error", { default: "array-simple" }],
+      "@typescript-eslint/consistent-type-assertions": ["error", { assertionStyle: "as" }],
+      "@typescript-eslint/consistent-type-imports": ["error", { prefer: "type-imports" }],
+      "@typescript-eslint/only-throw-error": "error",
+      "@typescript-eslint/prefer-nullish-coalescing": "error",
+      "@typescript-eslint/prefer-optional-chain": "error",
+      "import/no-unresolved": ["error", { ignore: ["^bun:"] }],
       "no-undef": "off",
     },
   },
+  {
+    files: ["eslint.config.js"],
+    rules: {
+      "import/no-named-as-default": "off",
+      "import/no-named-as-default-member": "off",
+    },
+  },
   {
     files: ["src/web/**/*.{ts,tsx}"],
     plugins: {
@@ -32,7 +65,6 @@ export default tseslint.config(
     },
     rules: {
       ...reactHooks.configs.recommended.rules,
-      "react-refresh/only-export-components": ["warn", { allowConstantExport: true }],
       "no-restricted-imports": [
         "error",
         {
@@ -53,6 +85,7 @@ export default tseslint.config(
           ],
         },
       ],
+      "react-refresh/only-export-components": ["warn", { allowConstantExport: true }],
     },
   },
 );