feat(federation): grants service CRUD + status transitions (FED-M2-06) (#496)

apps/gateway/src/federation/federation.module.ts

@@ -1,8 +1,9 @@
 import { Module } from '@nestjs/common';
 import { CaService } from './ca.service.js';
+import { GrantsService } from './grants.service.js';
 
 @Module({
-  providers: [CaService],
-  exports: [CaService],
+  providers: [CaService, GrantsService],
+  exports: [CaService, GrantsService],
 })
 export class FederationModule {}