test: 重构测试体系 — 建立组件测试层、补充后端测试、清理低质量测试

- 新增 jsdom + @testing-library/react 组件测试环境
- 新增 12 个组件测试，覆盖所有前端组件
- 补充后端 middleware 和 helpers 单元测试
- 删除伪测试 use-target-detail-logic.test.ts
- 精简过度枚举的 color-threshold.test.ts
- 新增 bunfig.toml 配置测试 preload
- 更新 DEVELOPMENT.md 测试章节
- 安装 @types/jsdom 修复类型声明

package.json

@@ -23,7 +23,9 @@
     "@commitlint/config-conventional": "^21.0.1",
     "@eslint/js": "^10.0.1",
     "@tanstack/react-query-devtools": "^5.100.10",
+    "@testing-library/react": "^16.3.2",
     "@types/bun": "^1.3.14",
+    "@types/jsdom": "^28.0.3",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
     "@vitejs/plugin-react": "^6.0.2",
@@ -36,6 +38,7 @@
     "eslint-plugin-react-hooks": "^7.1.1",
     "eslint-plugin-react-refresh": "^0.5.2",
     "husky": "^9.1.7",
+    "jsdom": "^29.1.1",
     "lint-staged": "^17.0.4",
     "prettier": "^3.8.3",
     "typescript": "^6.0.3",