[add] migration script

api/migrations/versions/ea31b4e347d8_202603131452.py

@@ -0,0 +1,30 @@
+"""202603131452
+
+Revision ID: ea31b4e347d8
+Revises: 01587a13522f
+Create Date: 2026-03-13 14:53:20.587580
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'ea31b4e347d8'
+down_revision: Union[str, None] = '01587a13522f'
+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('app_shares', sa.Column('permission', sa.String(), nullable=False, comment='权限模式: readonly | editable'))
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('app_shares', 'permission')
+    # ### end Alembic commands ###