```

feat(feishu): 添加飞书入站事件inbox和混合数据库协调功能

- 实现飞书入站事件持久化inbox机制，支持状态管理、租约锁定和重试退避
- 添加混合数据库基线协调工具，确保平台PostgreSQL结构安全对齐
- 增加运行组件心跳检测和readiness就绪检查机制
- 实现app_ticket事件的安全轮换和验证处理
- 添加生产环境运行编排和fail-closed安全机制
- 支持webhook快速确认和长连接独立进程处理
- 完善个人数据擦除时的待处理事件清理功能
```

app/modules/business/models/market.py

@@ -91,7 +91,12 @@ class MarketAnnouncement(Base, TimestampMixin):
 class MarketWatchlist(Base, TimestampMixin):
     __tablename__ = "market_watchlists"
     __table_args__ = (
-        UniqueConstraint("owner_id", "symbol", name="uq_market_watchlist_owner_symbol"),
+        UniqueConstraint(
+            "owner_id",
+            "symbol",
+            name="uq_market_watchlist_owner_symbol",
+            postgresql_nulls_not_distinct=True,
+        ),
     )
     id: Mapped[int] = mapped_column(Integer, primary_key=True)
     owner_id: Mapped[int | None] = mapped_column(