chore(backend): add black/isort/flake8 + pre-commit

backend/alembic/versions/3f2c1b9c8e12_add_teams_and_team_ownership.py

@@ -8,9 +8,9 @@ Create Date: 2026-02-02
 
 from __future__ import annotations
 
-from alembic import op
 import sqlalchemy as sa
 
+from alembic import op
 
 # revision identifiers, used by Alembic.
 revision = "3f2c1b9c8e12"

backend/alembic/versions/bacd5e6a253d_baseline_schema.py

@@ -10,6 +10,7 @@ from typing import Sequence, Union
 
 import sqlalchemy as sa
 import sqlmodel
+
 from alembic import op
 
 # revision identifiers, used by Alembic.