fix: remove destructive migrate rewrite, add replay source attribution and warning drain

src/cli/core/types.ts

@@ -195,6 +195,8 @@ export interface FailureRecord {
   category?: string;
   diff?: string;
   actual?: string;
+  /** Source of the contract: 'route' or 'plugin:name' */
+  source?: string;
 }
 
 /**