feat(admin): 模板列表支持「一键按标题填入槽位」，避免手抄长模板ID出错

- 列表每行新增「填入」按钮，按标题(订单/提现/活动报名/核销)自动写入对应槽位
- 顶部新增「一键按标题填入槽位」，批量填入后提示保存落库
- 回归 87 套件/639 用例全绿

server/tests/subscription-message-diagnose.spec.ts

@@ -56,6 +56,12 @@ describe('第七十批订阅消息原因可见与真实授权', () => {
     expect(indexCode).toContain('const normId = (v: any)');
   });
 
+  it('提供「一键填入槽位」，避免手抄长模板ID出错', () => {
+    expect(adminCode).toContain('applyWechatTemplates');
+    expect(adminCode).toContain('resolveSlotByTitle');
+    expect(adminCode).toContain('applyOneTemplate');
+  });
+
   it('小程序真正调用订阅授权并过滤占位符', () => {
     expect(subscribeCode).toContain('requestSubscribeAll');
     expect(subscribeCode).toContain("startsWith('tmpl_')");