fix(server): annotate SQLAlchemy result rows for 2.1 type inference [SAO-17580]

server/src/agent_control_server/endpoints/agents.py

@@ -460,7 +460,7 @@ async def list_agents(
     # Fetch limit + 1 to check if there are more pages
     query = query.limit(limit + 1)
     result = await db.execute(query)
-    agents = result.scalars().all()
+    agents: Sequence[Agent] = result.scalars().all()
 
     # Check if there are more pages
     has_more = len(agents) > limit

server/src/agent_control_server/services/control_bindings.py

@@ -279,7 +279,7 @@ def _apply_filters(stmt):  # type: ignore[no-untyped-def]
         if cursor is not None:
             page_stmt = page_stmt.where(ControlBinding.id < cursor)
         result = await self._db.execute(page_stmt.limit(limit + 1))
-        rows = list(result.scalars().all())
+        rows: list[ControlBinding] = list(result.scalars().all())
         has_more = len(rows) > limit
         if has_more:
             rows = rows[:limit]

server/src/agent_control_server/services/controls.py

@@ -303,7 +303,7 @@ async def list_versions(
             stmt = stmt.where(ControlVersion.version_num < cursor)
 
         result = await self._db.execute(stmt.limit(limit + 1))
-        versions = list(result.scalars().all())
+        versions: list[ControlVersion] = list(result.scalars().all())
 
         has_more = len(versions) > limit
         if has_more:
@@ -509,7 +509,7 @@ async def list_controls_page(
             query = query.where(Control.id < cursor)
 
         result = await self._db.execute(query.limit(limit + 1))
-        controls = list(result.scalars().all())
+        controls: list[Control] = list(result.scalars().all())
 
         total_query = (
             select(func.count())