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/followup.py

@@ -0,0 +1,89 @@
+from fastapi import APIRouter, Depends, HTTPException, Query
+from sqlalchemy.ext.asyncio import AsyncSession
+from typing import Annotated, Optional
+from app.database import get_db
+from app.services.followup_engine import FollowupEngine
+from app.api.v1.deps import get_current_user_id
+
+router = APIRouter()
+
+
+@router.get("/strategies")
+async def list_strategies(
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    engine = FollowupEngine(db)
+    await engine.ensure_default_strategies()
+    return {"strategies": await engine.get_strategies()}
+
+
+@router.get("/pending")
+async def get_pending_followups(
+    page: int = Query(1, ge=1),
+    size: int = Query(20, ge=1, le=100),
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    engine = FollowupEngine(db)
+    return await engine.get_pending_followups(user_id, page, size)
+
+
+@router.get("/logs")
+async def get_followup_logs(
+    page: int = Query(1, ge=1),
+    size: int = Query(20, ge=1, le=100),
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    engine = FollowupEngine(db)
+    return await engine.get_followup_logs(user_id, page, size)
+
+
+@router.post("/{log_id}/send")
+async def mark_followup_sent(
+    log_id: str,
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    engine = FollowupEngine(db)
+    success = await engine.mark_sent(user_id, log_id)
+    if not success:
+        raise HTTPException(status_code=404, detail="Followup log not found")
+    return {"status": "ok"}
+
+
+@router.post("/{log_id}/edit")
+async def edit_and_send_followup(
+    log_id: str,
+    body: dict,
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    edited_text = body.get("edited_text", "")
+    if not edited_text:
+        raise HTTPException(status_code=400, detail="edited_text is required")
+    engine = FollowupEngine(db)
+    success = await engine.mark_edited(user_id, log_id, edited_text)
+    if not success:
+        raise HTTPException(status_code=404, detail="Followup log not found")
+    return {"status": "ok"}
+
+
+@router.get("/stats")
+async def get_followup_stats(
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    engine = FollowupEngine(db)
+    return await engine.get_stats(user_id)
+
+
+@router.post("/scan")
+async def trigger_followup_scan(
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
+    engine = FollowupEngine(db)
+    result = await engine.scan_and_followup()
+    return result