[add] migration script

api/migrations/versions/52ebaf4ad3fb_202601081915.py

@@ -0,0 +1,42 @@
+"""202601081915
+
+Revision ID: 52ebaf4ad3fb
+Revises: a959b201c507
+Create Date: 2026-01-08 19:15:43.830726
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '52ebaf4ad3fb'
+down_revision: Union[str, None] = 'a959b201c507'
+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.create_table('conversation_details',
+    sa.Column('id', sa.UUID(), nullable=False),
+    sa.Column('conversation_id', sa.UUID(), nullable=True),
+    sa.Column('theme', sa.String(), nullable=True, comment='会话主题'),
+    sa.Column('theme_intro', sa.String(), nullable=True, comment='主题介绍'),
+    sa.Column('summary', sa.String(), nullable=True, comment='会话摘要'),
+    sa.Column('takeaways', sa.JSON(), nullable=True, comment='会话要点'),
+    sa.Column('info_score', sa.Integer(), nullable=True, comment='会话信息量评分'),
+    sa.ForeignKeyConstraint(['conversation_id'], ['conversations.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_conversation_details_id'), 'conversation_details', ['id'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_conversation_details_id'), table_name='conversation_details')
+    op.drop_table('conversation_details')
+    # ### end Alembic commands ###