[add] migration script

api/migrations/versions/7672d8f0f939_202602271020.py

@@ -0,0 +1,36 @@
+"""202602271020
+
+Revision ID: 7672d8f0f939
+Revises: 75e28690ae87
+Create Date: 2026-02-27 10:21:46.951584
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '7672d8f0f939'
+down_revision: Union[str, None] = '75e28690ae87'
+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.alter_column('file_metadata', 'workspace_id',
+               existing_type=sa.UUID(),
+               nullable=True,
+               existing_comment='Workspace ID')
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column('file_metadata', 'workspace_id',
+               existing_type=sa.UUID(),
+               nullable=False,
+               existing_comment='Workspace ID')
+    # ### end Alembic commands ###