fix: add missing argument and methods (#2550)

# What does this PR do?

Resolves:

```
mypy.....................................................................Failed
- hook id: mypy
- exit code: 1

llama_stack/providers/utils/responses/responses_store.py:119: error: Missing positional argument "policy" in call to "fetch_one" of "AuthorizedSqlStore"  [call-arg]
llama_stack/providers/utils/responses/responses_store.py:122: error: "AuthorizedSqlStore" has no attribute "delete"  [attr-defined]
Found 2 errors in 1 file (checked 403 source files)
```

Signed-off-by: Sébastien Han <seb@redhat.com>

llama_stack/providers/utils/responses/responses_store.py

@@ -116,7 +116,7 @@ class ResponsesStore:
         return OpenAIResponseObjectWithInput(**row["response_object"])
 
     async def delete_response_object(self, response_id: str) -> OpenAIDeleteResponseObject:
-        row = await self.sql_store.fetch_one("openai_responses", where={"id": response_id})
+        row = await self.sql_store.fetch_one("openai_responses", where={"id": response_id}, policy=self.policy)
         if not row:
             raise ValueError(f"Response with id {response_id} not found")
         await self.sql_store.delete("openai_responses", where={"id": response_id})

llama_stack/providers/utils/sqlstore/authorized_sqlstore.py

@@ -166,6 +166,10 @@ class AuthorizedSqlStore:
 
         return results.data[0] if results.data else None
 
+    async def delete(self, table: str, where: Mapping[str, Any]) -> None:
+        """Delete rows with automatic access control filtering."""
+        await self.sql_store.delete(table, where)
+
     def _build_access_control_where_clause(self, policy: list[AccessRule]) -> str:
         """Build SQL WHERE clause for access control filtering.