feat: persist probe quality and notification outbox

backend/app/core/deps.py

@@ -22,7 +22,12 @@ async def get_db() -> AsyncGenerator[AsyncSession, None]:
 
 
 async def init_db():
-    """创建所有表"""
-    from app.models.device import Base
+    """Apply non-destructive schema upgrades before creating missing tables."""
+    from app.models import Base
+    from migrations.versions.20260803_reliability_monitoring import (
+        run_reliability_migration,
+    )
+
     async with engine.begin() as conn:
+        await conn.run_sync(run_reliability_migration)
         await conn.run_sync(Base.metadata.create_all)