chore: 清理冗余配置、优化代码结构

- 移除 SSE 独立代理(VITE_APP_SSE_URL)及相关配置
- 删除 CHANGELOG.md，清理 .env 多余注释
- 重构 permission.ts 路由守卫，用 return 替代 next() 调用
- 优化 useSse.ts：合并重复逻辑、增加中文注释、调整重连参数
- 简化 vite.config.ts 代理和注释

package.json

@@ -52,10 +52,10 @@
     "@wangeditor-next/editor-for-vue": "^5.1.14",
     "animate.css": "^4.1.1",
     "axios": "^1.13.6",
-    "codemirror": "^5.65.21",
+    "codemirror": "^5.65.16",
     "codemirror-editor-vue3": "^2.8.0",
     "echarts": "^6.0.0",
-    "element-plus": "^2.13.5",
+    "element-plus": "^2.13.6",
     "exceljs": "^4.4.0",
     "lodash-es": "^4.17.23",
     "nprogress": "^0.2.0",
@@ -82,8 +82,6 @@
     "@types/path-browserify": "^1.0.3",
     "@types/qs": "^6.15.0",
     "@types/sortablejs": "^1.15.9",
-    "@typescript-eslint/eslint-plugin": "^8.57.0",
-    "@typescript-eslint/parser": "^8.57.0",
     "@vitejs/plugin-vue": "^6.0.5",
     "autoprefixer": "^10.4.27",
     "commitizen": "^4.3.1",
@@ -94,6 +92,7 @@
     "eslint-plugin-vue": "^10.8.0",
     "globals": "^17.4.0",
     "husky": "^9.1.7",
+    "jiti": "^2.6.1",
     "lint-staged": "^16.4.0",
     "postcss": "^8.5.8",
     "postcss-html": "^1.8.1",
@@ -109,13 +108,12 @@
     "stylelint-prettier": "^5.0.3",
     "terser": "^5.46.0",
     "typescript": "^5.9.3",
-    "typescript-eslint": "^8.57.0",
+    "typescript-eslint": "^8.57.2",
     "unocss": "^66.6.6",
     "unplugin-auto-import": "^21.0.0",
-    "unplugin-vue-components": "^31.0.0",
+    "unplugin-vue-components": "^32.0.0",
     "vite": "^8.0.0",
-    "vite-plugin-mock-dev-server": "^2.1.0",
-    "vue-eslint-parser": "^10.4.0",
+    "vite-plugin-mock-dev-server": "^2.1.1",
     "vue-tsc": "^3.2.5"
   },
   "engines": {