feat: 修复 H5 底部导航覆盖 + 更新项目进度文档

## H5 底部导航修复 (Bug #10)
- 精简 App.vue，移除重复 tabbar，仅保留全局样式
- uni-page 设置 height: calc(100% - 50px) + overflow-y: auto
- 内容区域精确停在底部导航上方，独立滚动不再叠加
- 恢复 custom-tab-bar 组件

## 项目进度文档
- PROGRESS.md 更新至 10 个 Bug 修复
- 新增 H5 底部导航修复记录
- 新增历史变更条目

uni-app/src/manifest.json

@@ -0,0 +1,97 @@
+{
+  "name": "trademate",
+  "appid": "",
+  "description": "外贸小助手 - 智能翻译、营销素材、客户管理",
+  "versionName": "1.0.0",
+  "versionCode": "100",
+  "transformPx": false,
+  "app-plus": {
+    "usingComponents": true,
+    "nvueStyleCompiler": "uni-app",
+    "compilerVersion": 3,
+    "splashscreen": {
+      "alwaysShowBeforeRender": true,
+      "waiting": true,
+      "autoclose": true,
+      "delay": 0
+    },
+    "modules": {},
+    "distribute": {
+      "android": {
+        "permissions": []
+      },
+      "ios": {}
+    }
+  },
+  "quickapp": {},
+  "mp-weixin": {
+    "appid": "",
+    "setting": {
+      "urlCheck": false,
+      "es6": true,
+      "enhance": true,
+      "postcss": true,
+      "preloadBackgroundData": false,
+      "minified": true,
+      "newFeature": false,
+      "coverView": true,
+      "nodeModules": false,
+      "autoAudits": false,
+      "showShadowRootInWxmlPanel": true,
+      "scopeDataCheck": false,
+      "uglifyFileName": false,
+      "checkInvalidKey": true,
+      "checkSiteMap": true,
+      "uploadWithSourceMap": true,
+      "compileHotReLoad": false,
+      "lazyloadPlaceholderEnable": false,
+      "useMultiFrameRuntime": true,
+      "useApiHook": true,
+      "useApiHostProcess": true,
+      "babelSetting": {
+        "ignore": [],
+        "disablePlugins": [],
+        "outputPath": ""
+      },
+      "enableEngineNative": false,
+      "useIsolateContext": true,
+      "userConfirmedBundleSwitch": false,
+      "packNpmManually": false,
+      "packNpmRelationList": [],
+      "minifyWXSS": true,
+      "showES6CompileOption": false,
+      "minifyWXML": true
+    },
+    "usingComponents": true
+  },
+  "mp-alipay": {
+    "usingComponents": true
+  },
+  "mp-baidu": {
+    "usingComponents": true
+  },
+  "mp-toutiao": {
+    "usingComponents": true
+  },
+  "uniStatistics": {
+    "enable": false
+  },
+  "h5": {
+    "title": "外贸小助手",
+    "template": "index.html",
+    "router": {
+      "mode": "hash"
+    },
+    "devServer": {
+      "port": 5173,
+      "disableHostCheck": true,
+      "proxy": {
+        "/api": {
+          "target": "http://localhost:8000",
+          "changeOrigin": true
+        }
+      }
+    }
+  },
+  "vueVersion": "3"
+}