chore: snapshot workflow migration progress

backend/app/database.py

@@ -1,13 +1,11 @@
 from __future__ import annotations
-from typing import TYPE_CHECKING, AsyncGenerator, Optional
+from typing import AsyncGenerator, Optional
+from starlette.requests import Request
 from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine, async_sessionmaker
 from sqlalchemy.orm import DeclarativeBase
 from sqlalchemy import text
 from app.config import settings
 
-if TYPE_CHECKING:
-    from starlette.requests import Request
-
 engine = create_async_engine(
     settings.database_url,
     echo=False,
@@ -27,22 +25,21 @@ class Base(DeclarativeBase):
     pass
 
 
-async def get_db(request: "Request | None" = None) -> AsyncGenerator[AsyncSession, None]:
+async def get_db(request: Request) -> AsyncGenerator[AsyncSession, None]:
     async with AsyncSessionLocal() as session:
         # Auto-apply RLS context if TenantContextMiddleware populated request.state
-        if request is not None:
-            tenant_id = getattr(request.state, "tenant_id", None)
-            role = getattr(request.state, "role", None)
-            if tenant_id:
-                # global_admin and legacy admin bypass RLS to see all tenants
-                _bypass_roles = {"global_admin", "admin"}
-                if role in _bypass_roles:
-                    await session.execute(text("SET LOCAL app.current_tenant_id = 'bypass'"))
-                else:
-                    await session.execute(
-                        text("SET LOCAL app.current_tenant_id = :tid"),
-                        {"tid": tenant_id},
-                    )
+        tenant_id = getattr(request.state, "tenant_id", None)
+        role = getattr(request.state, "role", None)
+        if tenant_id:
+            # global_admin and legacy admin bypass RLS to see all tenants
+            _bypass_roles = {"global_admin", "admin"}
+            if role in _bypass_roles:
+                await session.execute(text("SET LOCAL app.current_tenant_id = 'bypass'"))
+            else:
+                await session.execute(
+                    text("SET LOCAL app.current_tenant_id = :tid"),
+                    {"tid": tenant_id},
+                )
         try:
             yield session
         finally: