Fix SQLite circular dependency in batch migrations

Split batch_alter_table operations to avoid circular dependency
errors caused by the current_turn_team_id foreign key during
SQLite table recreation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

migrations/versions/9a119272b516_add_question_ownership_and_sharing.py

@@ -30,9 +30,13 @@ def upgrade():
     sa.PrimaryKeyConstraint('id'),
     sa.UniqueConstraint('question_id', 'shared_with_user_id', name='unique_question_share')
     )
+    # Split into separate batch operations to avoid SQLite circular dependency
+    # with the existing current_turn_team_id foreign key
     with op.batch_alter_table('games', schema=None) as batch_op:
         batch_op.add_column(sa.Column('completed_at', sa.DateTime(), nullable=True))
         batch_op.add_column(sa.Column('winners', sa.JSON(), nullable=True))
+
+    with op.batch_alter_table('games', schema=None) as batch_op:
         batch_op.drop_column('turn_order')
         batch_op.drop_column('is_steal_mode')