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/marketing.py

@@ -1,8 +1,12 @@
-from fastapi import APIRouter, HTTPException
-from typing import Optional
+from fastapi import APIRouter, HTTPException, Depends
+from typing import Optional, Annotated
 from pydantic import BaseModel
+from sqlalchemy.ext.asyncio import AsyncSession
+from app.database import get_db
 from app.services.marketing import MarketingService
+from app.services.preference import UserPreferenceService
 from app.core.security import decode_token
+from app.api.v1.deps import get_current_user_id
 from app.config import settings
 
 router = APIRouter()
@@ -36,11 +40,15 @@ class CompetitorRequest(BaseModel):
 
 
 @router.post("/generate")
-async def generate_marketing(data: MarketingRequest, authorization: str = None):
-    if not authorization:
-        raise HTTPException(status_code=401, detail="Missing token")
-
+async def generate_marketing(
+    data: MarketingRequest,
+    user_id: str = Depends(get_current_user_id),
+    db: Annotated[AsyncSession, Depends(get_db)] = None,
+):
     service = MarketingService()
+    pref_service = UserPreferenceService(db)
+    pref_context = await pref_service.get_preference_context(user_id, "marketing")
+
     product_info = {
         "name": data.product_name,
         "description": data.description,
@@ -48,7 +56,7 @@ async def generate_marketing(data: MarketingRequest, authorization: str = None):
         "price": data.price,
         "keywords": data.keywords,
     }
-    results = await service.generate(product_info, data.target, data.style, data.language, data.count)
+    results = await service.generate(product_info, data.target, data.style, data.language, data.count, pref_context)
 
     return {
         "results": results,