Rebrand the product to Montact and point local UI at production API.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/src/health/health.controller.ts

@@ -1,5 +1,6 @@
 import { Controller, Get } from '@nestjs/common';
 import type { HealthResponse } from '@mento/shared';
+import { brand } from '@mento/shared';
 
 @Controller('health')
 export class HealthController {
@@ -7,7 +8,7 @@ export class HealthController {
   getHealth(): HealthResponse {
     return {
       status: 'ok',
-      service: 'mento-api',
+      service: `${brand.id}-api`,
       timestamp: new Date().toISOString(),
     };
   }