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/models/__init__.py

@@ -2,10 +2,26 @@ from .user import User, Product
 from .customer import Customer, Conversation, Message
 from .quotation import Quotation, QuotationItem
 from .corpus import CorpusEntry
+from .team import Team, TeamMember
+from .analytics import UsageLog
+from .notification import Notification
+from .feedback import Feedback
+from .subscription import Subscription
+from .preference import PreferenceAnalysis, MarketingEffect
+from .device import Device
+from .followup import FollowupStrategy, FollowupLog
 
 __all__ = [
     "User", "Product",
     "Customer", "Conversation", "Message",
     "Quotation", "QuotationItem",
     "CorpusEntry",
+    "Team", "TeamMember",
+    "UsageLog",
+    "Notification",
+    "Feedback",
+    "Subscription",
+    "PreferenceAnalysis", "MarketingEffect",
+    "Device",
+    "FollowupStrategy", "FollowupLog",
 ]