feat: 实现受控真实下单安全边界 (#99)

client/src/db_schema.py

@@ -4,7 +4,7 @@
 ``MIGRATIONS`` 末尾增加版本，不能修改已经发布的迁移。
 """
 
-SCHEMA_VERSION = 2
+SCHEMA_VERSION = 3
 
 
 MIGRATION_1 = (
@@ -134,7 +134,16 @@ MIGRATION_2 = (
 )
 
 
+MIGRATION_3 = (
+    """
+    ALTER TABLE pdd_tasks ADD COLUMN execution_mode TEXT NOT NULL DEFAULT 'dry_run'
+        CHECK (execution_mode IN ('dry_run', 'live'))
+    """,
+)
+
+
 MIGRATIONS = {
     1: MIGRATION_1,
     2: MIGRATION_2,
+    3: MIGRATION_3,
 }