fix: add prefer-readonly rule (#5122)

packages/backend/server/src/modules/auth/guard.ts

@@ -53,8 +53,8 @@ class AuthGuard implements CanActivate {
   constructor(
     @Inject(NextAuthOptionsProvide)
     private readonly nextAuthOptions: NextAuthOptions,
-    private auth: AuthService,
-    private prisma: PrismaService,
+    private readonly auth: AuthService,
+    private readonly prisma: PrismaService,
     private readonly reflector: Reflector
   ) {}
 

packages/backend/server/src/modules/auth/service.ts

@@ -28,9 +28,9 @@ export const getUtcTimestamp = () => Math.floor(Date.now() / 1000);
 @Injectable()
 export class AuthService {
   constructor(
-    private config: Config,
-    private prisma: PrismaService,
-    private mailer: MailService
+    private readonly config: Config,
+    private readonly prisma: PrismaService,
+    private readonly mailer: MailService
   ) {}
 
   sign(user: UserClaim) {