fix(admin): 模板ID匹配改由后端裁决并 trim，修复"ID明明一致却报不属于该小程序"的误报

- 拉取模板列表接口在后端统一 trim 后比对，返回 mismatched 结论（含两侧空白差异场景）
- 后台改为直接展示后端结论，避免前端字符串比对误报
- 回归 87 套件/637 用例全绿

server/src/index.ts

@@ -3932,6 +3932,18 @@ app.get('/api/admin/message/templates', async (_req: Request, res: Response) =>
     const list = data && Array.isArray(data.data) ? data.data : [];
     const record = await repo.getPlatformConfigByKey('message_template_rules');
     const rules = (record && record.valueJson) || {};
+    const clean = (v: any) => String(v == null ? '' : v).trim();
+    const configured = {
+      orderStatus: clean(rules.orderStatusTemplateId),
+      activityJoin: clean(rules.activityJoinTemplateId),
+      withdrawSuccess: clean(rules.withdrawSuccessTemplateId),
+      verifyCode: clean(rules.verifyCodeTemplateId),
+    };
+    // 以服务端为准做匹配：两侧均 trim，避免因末尾空白/换行导致的误报
+    const existing = new Set(list.map((t: any) => clean(t.priTmplId)));
+    const mismatched = Object.entries(configured)
+      .filter(([, id]) => Boolean(id) && !existing.has(id))
+      .map(([key, id]) => ({ key, templateId: id }));
     res.json({
       code: 20000,
       data: {
@@ -3940,18 +3952,14 @@ app.get('/api/admin/message/templates', async (_req: Request, res: Response) =>
         errmsg: (data && data.errmsg) || 'ok',
         count: list.length,
         templates: list.map((t: any) => ({
-          templateId: t.priTmplId,
+          templateId: clean(t.priTmplId),
           title: t.title,
           type: t.type,
           content: t.content,
           example: t.example,
         })),
-        configured: {
-          orderStatus: String(rules.orderStatusTemplateId || ''),
-          activityJoin: String(rules.activityJoinTemplateId || ''),
-          withdrawSuccess: String(rules.withdrawSuccessTemplateId || ''),
-          verifyCode: String(rules.verifyCodeTemplateId || ''),
-        },
+        configured,
+        mismatched,
       },
     });
   } catch (err: any) {