feat(admin-web): surface monitoring platform authorization status

Dashboard and question-detail views now read platform_authorization_status
from the API. Tracking disables collect-now when the account has no
desktop client, no authorized platforms, or the selected platform is
unauthorized, and keeps the six-platform matrix stable; question-detail
replaces tabs and cards with an explicit unavailable notice when the
account is not authorized for monitoring. Adds the shared type and
en/zh strings covering each status.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/shared-types/src/index.ts

@@ -1110,8 +1110,16 @@ export interface MonitoringCitedArticle {
   citation_rate: number | null;
 }
 
+export type MonitoringPlatformAuthorizationStatus =
+  | "authorized"
+  | "no_desktop_client"
+  | "no_authorized_platforms";
+
 export interface MonitoringDashboardRuntime {
   current_user_client_online: boolean;
+  platform_authorization_status: MonitoringPlatformAuthorizationStatus;
+  authorized_monitoring_platform_ids: string[];
+  authorized_monitoring_platform_count: number;
 }
 
 export interface MonitoringDashboardCompositeResponse {
@@ -1174,6 +1182,7 @@ export interface MonitoringQuestionDetailResponse {
   question_id: number;
   question_hash: string;
   question_text: string;
+  platform_authorization_status: MonitoringPlatformAuthorizationStatus;
   time_window: {
     date_from: string;
     date_to: string;