fix alembic migration

api/app/core/alembic_startup.py

@@ -21,10 +21,27 @@ logger = get_logger(__name__)
 _API_DIR: Final[Path] = Path(__file__).resolve().parent.parent.parent
 
 
+def _repair_withdrawn_revision_stamp_if_needed() -> None:
+    from sqlalchemy import create_engine
+
+    from app.core.alembic_revision_repair import try_repair_withdrawn_0020_revision
+    from app.core.db import _database_url
+
+    engine = create_engine(_database_url())
+    with engine.connect() as conn:
+        if try_repair_withdrawn_0020_revision(conn):
+            conn.commit()
+            logger.warning(
+                "alembic_version 曾为已撤回的 0020_*，已回退到 0018；"
+                "将重新执行 0019_align_legacy_schema"
+            )
+
+
 def _run_alembic_upgrade_once() -> None:
     from alembic.command import upgrade
     from alembic.config import Config
 
+    _repair_withdrawn_revision_stamp_if_needed()
     cfg = Config(str(_API_DIR / "alembic.ini"))
     upgrade(cfg, "head")