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

backend/app/api/v1/analytics.py

@@ -0,0 +1,73 @@
+from fastapi import APIRouter, Depends
+from sqlalchemy.ext.asyncio import AsyncSession
+from typing import Annotated
+from app.database import get_db
+from app.services.analytics import AnalyticsService
+from app.api.v1.deps import get_current_user_id
+
+router = APIRouter()
+
+
+@router.get("/customers")
+async def customer_analytics(
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    service = AnalyticsService(db)
+    return await service.get_customer_stats(user_id)
+
+
+@router.get("/translations")
+async def translation_analytics(
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    service = AnalyticsService(db)
+    return await service.get_translation_stats(user_id)
+
+
+@router.get("/quotations")
+async def quotation_analytics(
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    service = AnalyticsService(db)
+    return await service.get_quotation_stats(user_id)
+
+
+@router.get("/messages")
+async def message_analytics(
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    service = AnalyticsService(db)
+    return await service.get_message_stats(user_id)
+
+
+@router.get("/overview")
+async def overview(
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    service = AnalyticsService(db)
+    customers = await service.get_customer_stats(user_id)
+    translations = await service.get_translation_stats(user_id)
+    quotations = await service.get_quotation_stats(user_id)
+    messages = await service.get_message_stats(user_id)
+    marketing = await service.get_marketing_stats(user_id)
+    return {
+        "customers": customers,
+        "translations": translations,
+        "quotations": quotations,
+        "messages": messages,
+        "marketing": marketing,
+    }
+
+
+@router.get("/marketing")
+async def marketing_analytics(
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    service = AnalyticsService(db)
+    return await service.get_marketing_stats(user_id)