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/components/tabbar/custom-tabbar.vue

@@ -1,5 +1,5 @@
 <template>
-  <view class="custom-tabbar" v-if="showTabbar">
+  <view class="custom-tabbar">
     <view
       class="tab-item"
       v-for="(item, index) in tabList"
@@ -13,7 +13,7 @@
 </template>
 
 <script setup>
-import { ref, onMounted, computed } from 'vue'
+import { ref, onMounted, watch } from 'vue'
 
 const current = ref(0)
 
@@ -25,31 +25,27 @@ const tabList = ref([
   { pagePath: '/pages/quotation/quotation', text: '报价', icon: '📄' },
 ])
 
+const updateCurrent = () => {
+  const hash = window.location.hash || ''
+  for (let i = 0; i < tabList.value.length; i++) {
+    if (hash.includes(tabList.value[i].pagePath)) {
+      current.value = i
+      return
+    }
+  }
+  current.value = 0
+}
+
 onMounted(() => {
   updateCurrent()
 })
 
-const showTabbar = computed(() => {
-  const pages = getCurrentPages()
-  if (pages.length) {
-    const currentPage = pages[pages.length - 1].route || ''
-    return !currentPage.includes('login')
+watch(
+  () => window.location.hash,
+  () => {
+    updateCurrent()
   }
-  return true
-})
-
-const updateCurrent = () => {
-  const pages = getCurrentPages()
-  if (pages.length) {
-    const currentPage = pages[pages.length - 1].$page?.fullPath || pages[pages.length - 1].route || ''
-    const index = tabList.value.findIndex(item => currentPage.includes(item.pagePath))
-    if (index !== -1) current.value = index
-  }
-}
-
-uni.onAppRoute(() => {
-  updateCurrent()
-})
+)
 
 const switchTab = (index) => {
   if (current.value === index) return
@@ -64,11 +60,12 @@ const switchTab = (index) => {
   bottom: 0;
   left: 0;
   right: 0;
-  height: 100rpx;
+  height: 50px;
   background: #fff;
   display: flex;
-  box-shadow: 0 -2rpx 10rpx rgba(0, 0, 0, 0.05);
-  z-index: 999;
+  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
+  z-index: 99999;
+  border-top: 1px solid #f0f0f0;
 }
 
 .tab-item {
@@ -77,19 +74,27 @@ const switchTab = (index) => {
   flex-direction: column;
   align-items: center;
   justify-content: center;
+  padding: 6px 0;
+  cursor: pointer;
+  transition: all 0.2s;
+}
+
+.tab-item:active {
+  opacity: 0.7;
 }
 
 .tab-icon {
-  font-size: 44rpx;
-  margin-bottom: 4rpx;
+  font-size: 24px;
+  line-height: 1.2;
 }
 
 .tab-text {
-  font-size: 22rpx;
-  color: #666;
+  font-size: 11px;
+  color: #999;
+  margin-top: 2px;
 }
 
 .tab-text.active {
   color: #1890ff;
 }
-</style>
+</style>