feat: complete TASK-WP2-04 credit ledger

2026-08-02 23:27:10 +08:00
parent 9b4860cfc2
commit 4551d73e76
24 changed files with 3002 additions and 6 deletions
@@ -0,0 +1,16 @@
+export type CreditErrorCode =
+  | "credit_account_not_found"
+  | "credit_generation_not_found"
+  | "credit_insufficient"
+  | "credit_invariant_failed"
+  | "credit_operation_conflict"
+  | "credit_request_invalid";
+
+export class CreditError extends Error {
+  readonly code: CreditErrorCode;
+
+  constructor(code: CreditErrorCode) {
+    super(code);
+    this.code = code;
+  }
+}