[add] migrations script

api/migrations/versions/8cd790908f92_202601191615.py

@@ -0,0 +1,34 @@
+"""202601191615
+
+Revision ID: 8cd790908f92
+Revises: 1fd7d0e703b3
+Create Date: 2026-01-19 16:15:35.058649
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '8cd790908f92'
+down_revision: Union[str, None] = '1fd7d0e703b3'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('workflow_executions', sa.Column('release_id', sa.UUID(), nullable=True))
+    op.create_index(op.f('ix_workflow_executions_release_id'), 'workflow_executions', ['release_id'], unique=False)
+    op.create_foreign_key(None, 'workflow_executions', 'app_releases', ['release_id'], ['id'], ondelete='CASCADE')
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(None, 'workflow_executions', type_='foreignkey')
+    op.drop_index(op.f('ix_workflow_executions_release_id'), table_name='workflow_executions')
+    op.drop_column('workflow_executions', 'release_id')
+    # ### end Alembic commands ###