"""add_kb_status

Revision ID: 4fcdb390ae18
Revises: 5c27c8e31fde
Create Date: 2026-09-01 12:41:55.919052
"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision: str = '4fcdb390ae18'
down_revision: Union[str, None] = '5c27c8e31fde'
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('knowledge_bases', sa.Column('status', sa.String(length=16), nullable=False, comment='状态 (active/deleted)'))
    # ### end Alembic commands ###


def downgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_column('knowledge_bases', 'status')
    # ### end Alembic commands ###