feat: add data import/export bundle

frontend/src/types/index.ts

@@ -727,6 +727,56 @@ export interface UpdateProxyRequest {
   status?: 'active' | 'inactive'
 }
 
+export interface AdminDataPayload {
+  type: string
+  version: number
+  exported_at: string
+  proxies: AdminDataProxy[]
+  accounts: AdminDataAccount[]
+}
+
+export interface AdminDataProxy {
+  proxy_key: string
+  name: string
+  protocol: ProxyProtocol
+  host: string
+  port: number
+  username?: string | null
+  password?: string | null
+  status: 'active' | 'inactive'
+}
+
+export interface AdminDataAccount {
+  name: string
+  notes?: string | null
+  platform: AccountPlatform
+  type: AccountType
+  credentials: Record<string, unknown>
+  extra?: Record<string, unknown>
+  proxy_key?: string | null
+  concurrency: number
+  priority: number
+  rate_multiplier?: number | null
+  expires_at?: number | null
+  auto_pause_on_expired?: boolean
+}
+
+export interface AdminDataImportError {
+  kind: 'proxy' | 'account'
+  name?: string
+  proxy_key?: string
+  message: string
+}
+
+export interface AdminDataImportResult {
+  proxy_created: number
+  proxy_reused: number
+  proxy_failed: number
+  account_created: number
+  account_failed: number
+  errors?: AdminDataImportError[]
+}
+
 // ==================== Usage & Redeem Types ====================
 
 export type RedeemCodeType = 'balance' | 'concurrency' | 'subscription' | 'invitation'