feat: enforce trip membership and role authorization

backend/libs/trips/src/trips.module.ts

@@ -4,6 +4,9 @@ import { TripsRepository } from './trips.repository';
 import { TripsService } from './trips.service';
 import { TripSettingsRepository } from './trip-settings.repository';
 import { TripSettingsService } from './trip-settings.service';
+import { TripMembersRepository } from './trip-members.repository';
+import { TripMembersService } from './trip-members.service';
+import { TripMembershipGuard } from './trip-membership.guard';
 
 @Module({
   imports: [DatabaseModule],
@@ -12,7 +15,15 @@ import { TripSettingsService } from './trip-settings.service';
     TripsService,
     TripSettingsRepository,
     TripSettingsService,
+    TripMembersRepository,
+    TripMembersService,
+    TripMembershipGuard,
+  ],
+  exports: [
+    TripsService,
+    TripSettingsService,
+    TripMembersService,
+    TripMembershipGuard,
   ],
-  exports: [TripsService, TripSettingsService],
 })
 export class TripsLibModule {}