删除不再使用的文件和配置，优化项目结构以提升可维护性；新增环境变量配置示例，更新 Docker 和部署相关文件以支持灵活的端口设置；重构数据库连接逻辑，增强错误处理和配置管理，确保更好的兼容性和稳定性。

miniprogram/app.json

@@ -28,34 +28,18 @@
     "backgroundColor": "#1c1c1e",
     "borderStyle": "black",
     "list": [
-      {
-        "pagePath": "pages/index/index",
-        "text": "首页"
-      },
-      {
-        "pagePath": "pages/chapters/chapters",
-        "text": "目录"
-      },
-      {
-        "pagePath": "pages/match/match",
-        "text": "找伙伴"
-      },
-      {
-        "pagePath": "pages/my/my",
-        "text": "我的"
-      }
+      { "pagePath": "pages/index/index", "text": "首页" },
+      { "pagePath": "pages/chapters/chapters", "text": "目录" },
+      { "pagePath": "pages/match/match", "text": "找伙伴" },
+      { "pagePath": "pages/my/my", "text": "我的" }
     ]
   },
   "usingComponents": {},
   "__usePrivacyCheck__": true,
   "permission": {
-    "scope.userLocation": {
-      "desc": "用于匹配附近的书友"
-    }
+    "scope.userLocation": { "desc": "用于匹配附近的书友" }
   },
-  "requiredPrivateInfos": [
-    "getLocation"
-  ],
+  "requiredPrivateInfos": ["getLocation"],
   "lazyCodeLoading": "requiredComponents",
   "style": "v2",
   "sitemapLocation": "sitemap.json"