feat: 插件开发 ozon 端主体完成

server/db.py

@@ -3,6 +3,7 @@ from __future__ import annotations
 
 from collections.abc import AsyncGenerator
 
+from sqlalchemy import text
 from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
 from sqlalchemy.orm import DeclarativeBase
 
@@ -38,10 +39,19 @@ async def get_db() -> AsyncGenerator[AsyncSession, None]:
         yield session
 
 
+async def _migrate(conn) -> None:
+    """给旧库补充新增列（create_all 不会修改已存在的表）。"""
+    rows = await conn.execute(text("PRAGMA table_info(suites)"))
+    cols = {row[1] for row in rows}
+    if "model" not in cols:
+        await conn.execute(text("ALTER TABLE suites ADD COLUMN model VARCHAR(64)"))
+
+
 async def init_db() -> None:
-    """启动时建表（MVP 不引 Alembic，模型变更删库重建即可）。"""
+    """启动时建表 + 轻量列迁移（MVP 不引 Alembic）。"""
     import models  # noqa: F401  确保模型注册
 
     engine = get_engine()
     async with engine.begin() as conn:
         await conn.run_sync(Base.metadata.create_all)
+        await _migrate(conn)