chore: 存版本号并添加入口，方便触发版本间的迁移逻辑

migrations/models/3_20240104221037_update.py

@@ -0,0 +1,14 @@
+from tortoise import BaseDBAsyncClient
+
+
+async def upgrade(db: BaseDBAsyncClient) -> str:
+    return """
+        CREATE TABLE IF NOT EXISTS "program" (
+    "id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+    "version" VARCHAR(20) NOT NULL
+);"""
+
+
+async def downgrade(db: BaseDBAsyncClient) -> str:
+    return """
+        DROP TABLE IF EXISTS "program";"""