[add] migration script

api/migrations/versions/1f85dce125e5_202604271530.py

@@ -0,0 +1,42 @@
+"""202604271530
+
+Revision ID: 1f85dce125e5
+Revises: 4e89970f9e7c
+Create Date: 2026-04-27 15:30:35.614679
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision: str = '1f85dce125e5'
+down_revision: Union[str, None] = '4e89970f9e7c'
+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('files', sa.Column('file_key', sa.String(length=512), nullable=True, comment='storage file key for FileStorageService'))
+    op.create_index(op.f('ix_files_file_key'), 'files', ['file_key'], unique=False)
+    op.alter_column('model_configs', 'capability',
+               existing_type=postgresql.ARRAY(sa.VARCHAR()),
+               comment="模型能力列表（如['vision', 'audio', 'video', 'thinking']）",
+               existing_comment="模型能力列表（如['vision', 'audio', 'video']）",
+               existing_nullable=False)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column('model_configs', 'capability',
+               existing_type=postgresql.ARRAY(sa.VARCHAR()),
+               comment="模型能力列表（如['vision', 'audio', 'video']）",
+               existing_comment="模型能力列表（如['vision', 'audio', 'video', 'thinking']）",
+               existing_nullable=False)
+    op.drop_index(op.f('ix_files_file_key'), table_name='files')
+    op.drop_column('files', 'file_key')
+    # ### end Alembic commands ###