fix: 调整admin数据库初始化，只用一个初始化创建

api/migrations_extend/versions/2025_02_27_0001-add_message_context_extend.py

@@ -0,0 +1,48 @@
+"""add_message_context_extend
+
+Revision ID: 014_message_context_extend
+Revises: 013_app_extend
+Create Date: 2025-02-27
+
+"""
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.engine.reflection import Inspector
+
+from models import types
+
+# revision identifiers, used by Alembic.
+revision = '014_message_context_extend'
+down_revision = '013_app_extend'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    conn = op.get_bind()
+    inspector = Inspector.from_engine(conn)
+    tables = inspector.get_table_names()
+
+    if 'message_context_extend' not in tables:
+        op.create_table('message_context_extend',
+            sa.Column('id', types.StringUUID(), server_default=sa.text('uuid_generate_v4()'), nullable=False),
+            sa.Column('created_at', sa.DateTime(), server_default=sa.text('CURRENT_TIMESTAMP(0)'), nullable=False),
+            sa.Column('conversation_id', sa.String(36), nullable=True),
+            sa.Column('message_id', sa.String(36), nullable=False),
+            sa.PrimaryKeyConstraint('id', name='message_context_extend_joins_pkey')
+        )
+        with op.batch_alter_table('message_context_extend', schema=None) as batch_op:
+            batch_op.create_index('message_context_conversation_id_idx', ['conversation_id'], unique=False)
+            batch_op.create_index('message_context_created_at_idx', ['created_at'], unique=False)
+
+
+def downgrade():
+    conn = op.get_bind()
+    inspector = Inspector.from_engine(conn)
+    tables = inspector.get_table_names()
+
+    if 'message_context_extend' in tables:
+        with op.batch_alter_table('message_context_extend', schema=None) as batch_op:
+            batch_op.drop_index('message_context_conversation_id_idx')
+            batch_op.drop_index('message_context_created_at_idx')
+        op.drop_table('message_context_extend')