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/silent_pattern.py

@@ -0,0 +1,34 @@
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.ext.asyncio import AsyncSession
+from typing import Annotated
+from app.database import get_db
+from app.services.silent_pattern import SilentPatternService
+from app.api.v1.deps import get_current_user_id
+
+router = APIRouter()
+
+
+@router.get("/risk-analysis")
+async def get_silent_risk_analysis(
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    service = SilentPatternService(db)
+    risks = await service.analyze_silent_risk(user_id)
+    return {
+        "items": risks,
+        "total": len(risks),
+        "high_risk": len([r for r in risks if r["risk_level"] == "high"]),
+        "medium_risk": len([r for r in risks if r["risk_level"] == "medium"]),
+    }
+
+
+@router.get("/{customer_id}/suggestions")
+async def get_followup_suggestions(
+    customer_id: str,
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    service = SilentPatternService(db)
+    suggestions = await service.get_suggestions(user_id, customer_id)
+    return {"customer_id": customer_id, "suggestions": suggestions}