fix(db): 補齊 action_plans schema drift

database/manager.py

@@ -37,6 +37,18 @@ _metadata_initialized = False
 _POSTGRES_METADATA_LOCK_ID = 170017
 
 
+def _repair_postgres_schema_drift(conn):
+    """補齊 create_all 不會處理的既有 PostgreSQL schema drift。"""
+    conn.execute(text("""
+        ALTER TABLE IF EXISTS action_plans
+            ADD COLUMN IF NOT EXISTS action_type VARCHAR(100),
+            ADD COLUMN IF NOT EXISTS description TEXT,
+            ADD COLUMN IF NOT EXISTS priority INTEGER DEFAULT 3,
+            ADD COLUMN IF NOT EXISTS metadata_json TEXT
+    """))
+    conn.execute(text("CREATE INDEX IF NOT EXISTS idx_action_plans_type ON action_plans(action_type)"))
+
+
 def ensure_metadata_initialized(engine, use_postgres_lock=False):
     """冪等初始化 SQLAlchemy metadata，避免一般流程重複碰 DDL。"""
     global _metadata_initialized
@@ -52,6 +64,7 @@ def ensure_metadata_initialized(engine, use_postgres_lock=False):
                 conn.execute(text("SELECT pg_advisory_lock(:lock_id)"), {"lock_id": _POSTGRES_METADATA_LOCK_ID})
                 try:
                     Base.metadata.create_all(conn)
+                    _repair_postgres_schema_drift(conn)
                 finally:
                     conn.execute(text("SELECT pg_advisory_unlock(:lock_id)"), {"lock_id": _POSTGRES_METADATA_LOCK_ID})
         else: