feat(admin): super-admin user detail dashboard

Add a read-only User Detail dashboard for super admins, reachable by
clicking a user name in the admin users list.

Backend: new `admin` module aggregating existing domain services
(no new entities). ADMIN-only endpoints under /api/v1/admin:
overview (profile, account status, wallet balance, revenue, summary
counts), wallet transactions, applications (incl. deleted/docked with
restore eligibility), build/deploy errors, tickets with conversation,
and a composite activity timeline. Adds BillingService.getRevenueSummary
and guards against a wallet get-or-create race in the overview reads.

Frontend: tabbed detail page (overview/applications/activity/errors/
tickets) with lazy per-tab queries; user names in the admin list link to
it (admin only); fa/en i18n keys and response types.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/types/index.ts

@@ -172,7 +172,7 @@ export type DeploymentStatus =
   | 'stopped'
   | 'deleting';
 
-export type AppLifecycleStatus = 'active' | 'suspended' | 'pending_deletion' | 'deleted';
+export type AppLifecycleStatus = 'active' | 'suspended' | 'pending_deletion' | 'docked' | 'deleted';
 
 export interface ResourceCredit {
   id: string;
@@ -432,6 +432,142 @@ export interface AdminUser extends User {
   appCount?: number;
 }
 
+// ─── Admin User Detail dashboard ────────────────────
+
+export interface AdminUserProfile {
+  id: string;
+  phone?: string | null;
+  email: string | null;
+  firstName: string;
+  lastName: string;
+  role: 'user' | 'admin' | 'technical' | 'sales';
+  isActive: boolean;
+  phoneVerified?: boolean;
+  namespace?: string;
+  createdAt: string;
+  updatedAt?: string;
+}
+
+export interface AdminUserCounts {
+  appsTotal: number;
+  appsActive: number;
+  appsDeleted: number;
+  managedServices: number;
+  optionalServices: number;
+  deployments: number;
+  ticketsTotal: number;
+  ticketsOpen: number;
+}
+
+export interface AdminRevenueSummary {
+  /** What the user actually spent on services (platform income). */
+  revenue: number;
+  /** Total topped up into the wallet. */
+  charged: number;
+  refunded: number;
+}
+
+export interface AdminUserTransaction {
+  id: string;
+  type: TransactionType;
+  amount: number;
+  balanceAfter: number;
+  description?: string | null;
+  applicationId?: string | null;
+  invoiceId?: string | null;
+  createdAt: string;
+}
+
+export interface AdminUserOverview {
+  profile: AdminUserProfile;
+  wallet: { balance: number };
+  revenue: AdminRevenueSummary;
+  counts: AdminUserCounts;
+  recentTransactions: AdminUserTransaction[];
+}
+
+export type RestoreEligibility = 'restorable' | 'recoverable' | 'none';
+
+export interface AdminUserApplication {
+  id: string;
+  name: string;
+  productType?: ProductType;
+  runtime: string;
+  databaseType: string;
+  lifecycleStatus?: AppLifecycleStatus;
+  billingCycle?: BillingCycle | null;
+  subdomain?: string | null;
+  customDomain?: string | null;
+  enableRedis: boolean;
+  enableRabbitmq: boolean;
+  enableElasticsearch: boolean;
+  cpuLimit: string;
+  memoryLimit: string;
+  replicas: number;
+  createdAt: string;
+  planExpiresAt?: string | null;
+  scheduledDeletionAt?: string | null;
+  dockedAt?: string | null;
+  restorable: RestoreEligibility;
+  latestDeployment?: { id: string; status: DeploymentStatus; createdAt: string } | null;
+}
+
+export interface AdminUserError {
+  deploymentId: string;
+  applicationId: string;
+  applicationName: string;
+  status: DeploymentStatus;
+  errorMessage?: string | null;
+  createdAt: string;
+  finishedAt?: string | null;
+  resolved: boolean;
+}
+
+export interface AdminDeploymentLogs {
+  id: string;
+  status: DeploymentStatus;
+  errorMessage?: string | null;
+  buildLog?: string | null;
+  deployLog?: string | null;
+  createdAt: string;
+  finishedAt?: string | null;
+}
+
+export interface AdminUserTicketMessage {
+  id: string;
+  message: string;
+  senderRole: 'user' | 'admin' | 'technical' | 'sales';
+  senderName?: string | null;
+  createdAt: string;
+}
+
+export interface AdminUserTicket {
+  id: string;
+  subject: string;
+  department: TicketDepartment;
+  status: TicketStatus;
+  priority: TicketPriority;
+  createdAt: string;
+  updatedAt: string;
+  closedAt?: string | null;
+  messageCount: number;
+  messages: AdminUserTicketMessage[];
+}
+
+export interface AdminActivityEvent {
+  type:
+    | 'app_created'
+    | 'app_docked'
+    | 'app_deleted'
+    | 'deployment'
+    | 'transaction'
+    | 'ticket'
+    | string;
+  title: string;
+  at: string;
+  meta: Record<string, any>;
+}
+
 export interface ClusterNode {
   name: string;
   status: string;