fix(admin): remove manual reasons and repair code creation

frontend/src/components/admin/codes-resource.tsx

@@ -22,7 +22,7 @@ import {
 import dayjs from "dayjs";
 import { useState } from "react";
 
-import { ReasonActionModal } from "@/components/admin/reason-action-modal";
+import { ConfirmActionModal } from "@/components/admin/confirm-action-modal";
 import {
   formatAdminDate,
   ResourceTable,
@@ -84,7 +84,7 @@ export default function CodesPage() {
     identity?.permissions.includes("billing.adjustments.write"),
   );
 
-  async function submitCreate(reason: string) {
+  async function submitCreate() {
     if (!pendingCreate) return;
     const result = await createCodes({
       resource: "codes",
@@ -93,7 +93,6 @@ export default function CodesPage() {
         count: pendingCreate.count,
         expiresAt: pendingCreate.expiresAt?.toISOString() ?? null,
         note: pendingCreate.note?.trim() || null,
-        reason,
       },
       successNotification: false,
     });
@@ -103,7 +102,7 @@ export default function CodesPage() {
     createForm.resetFields();
   }
 
-  async function submitEdit(reason: string) {
+  async function submitEdit() {
     if (!editRecord || !pendingEdit) return;
     await updateCode({
       resource: "codes",
@@ -111,20 +110,18 @@ export default function CodesPage() {
       values: {
         note: pendingEdit.note?.trim() || null,
         expiresAt: pendingEdit.expiresAt?.toISOString() ?? null,
-        reason,
       },
     });
     setPendingEdit(null);
     setEditRecord(null);
   }
 
-  async function revoke(record: CodeRecord, reason: string) {
+  async function revoke(record: CodeRecord) {
     setRevoking(true);
     try {
       await adminRequestJson(`/api/admin/codes/${record.id}`, {
         method: "DELETE",
         headers: { "x-request-id": crypto.randomUUID() },
-        body: JSON.stringify({ reason }),
       });
       await invalidate({ resource: "codes", invalidates: ["list"] });
       message.success("兑换码已撤销");
@@ -316,30 +313,30 @@ export default function CodesPage() {
           </Button>
         </Form>
       </Modal>
-      <ReasonActionModal
+      <ConfirmActionModal
         open={Boolean(pendingCreate)}
         title="生成兑换码"
         okText="确认生成"
         confirmLoading={createMutation.isPending}
         onCancel={() => setPendingCreate(null)}
-        onSubmit={submitCreate}
+        onConfirm={submitCreate}
       />
-      <ReasonActionModal
+      <ConfirmActionModal
         open={Boolean(pendingEdit)}
         title="编辑未兑换码"
         okText="确认保存"
         confirmLoading={updateMutation.isPending}
         onCancel={() => setPendingEdit(null)}
-        onSubmit={submitEdit}
+        onConfirm={submitEdit}
       />
-      <ReasonActionModal
+      <ConfirmActionModal
         open={Boolean(revokeRecord)}
         title="撤销兑换码"
         okText="确认撤销"
         danger
         confirmLoading={revoking}
         onCancel={() => setRevokeRecord(null)}
-        onSubmit={(reason) => revoke(revokeRecord!, reason)}
+        onConfirm={() => revoke(revokeRecord!)}
       />
     </>
   );