[add] migration script

api/migrations/versions/793c31683aa5_202601121530.py

@@ -0,0 +1,32 @@
+"""202601121530
+
+Revision ID: 793c31683aa5
+Revises: 52ebaf4ad3fb
+Create Date: 2026-01-12 15:29:03.135322
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '793c31683aa5'
+down_revision: Union[str, None] = '52ebaf4ad3fb'
+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('conversation_details', sa.Column('question', sa.JSON(), nullable=True, comment='用户问题'))
+    op.drop_column('conversation_details', 'theme_intro')
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('conversation_details', sa.Column('theme_intro', sa.VARCHAR(), autoincrement=False, nullable=True, comment='主题介绍'))
+    op.drop_column('conversation_details', 'question')
+    # ### end Alembic commands ###