feat(frontend) : update UserData DTO for client users

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/services/dto/user-data.ts

@@ -3,10 +3,14 @@ export type UserData = {
     '@id'?: string
     username: string
     roles: string[]
+    client?: { '@id'?: string; id: number; name: string } | null
+    allowedProjects?: { '@id'?: string; id: number; name: string }[]
 }
 
 export type UserWrite = {
     username: string
     password?: string
     roles: string[]
+    client?: string | null
+    allowedProjects?: string[]
 }