fix(tauri): update @reserved annotations + remove dead SaaS client methods

- Update 9 @reserved → @connected for commands with frontend consumers:
  zclaw_status, zclaw_start, zclaw_stop, zclaw_restart, zclaw_doctor,
  viking_add_with_metadata, viking_store_with_summaries,
  trigger_execute, scheduled_task_create
- Remove 10 dead SaaS client methods with zero callers:
  healthCheck, listDevices (saas-client.ts)
  getRelayTask, getUsage/relay (saas-relay.ts)
  listPrompts, getPrompt, listPromptVersions, getPromptVersion (saas-prompt.ts)
  getPlan, getUsage/billing (saas-billing.ts)

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

desktop/src/lib/saas-client.ts

@@ -89,17 +89,12 @@ import type {
   TotpResultResponse,
   SaaSModelInfo,
   SaaSConfigItem,
-  DeviceInfo,
   SyncConfigRequest,
   ConfigDiffResponse,
   ConfigSyncResult,
   SaaSErrorResponse,
   RelayTaskInfo,
-  UsageStats,
   PromptCheckResult,
-  PromptTemplateInfo,
-  PromptVersionInfo,
-  PaginatedResponse,
   AgentTemplateAvailable,
   AgentTemplateFull,
   AgentConfigFromTemplate,
@@ -310,21 +305,6 @@ export class SaaSClient {
     throw new SaaSApiError(0, 'UNKNOWN', '请求失败');
   }
 
-  // --- Health ---
-
-  /**
-   * Quick connectivity check against the SaaS backend.
-   */
-  async healthCheck(): Promise<boolean> {
-    try {
-      await this.request<unknown>('GET', '/api/health', undefined, 5000);
-      return true;
-    } catch (e) {
-      saasLog.debug('Health check failed', { error: e });
-      return false;
-    }
-  }
-
   // --- Device Endpoints ---
 
   /**
@@ -353,14 +333,6 @@ export class SaaSClient {
     });
   }
 
-  /**
-   * List devices registered for the current account.
-   */
-  async listDevices(): Promise<DeviceInfo[]> {
-    const res = await this.request<{ items: DeviceInfo[] }>('GET', '/api/v1/devices');
-    return res.items;
-  }
-
   // --- Model Endpoints ---
 
   /**
@@ -490,17 +462,11 @@ export interface SaaSClient {
 
   // --- Relay (saas-relay.ts) ---
   listRelayTasks(query?: { status?: string; page?: number; page_size?: number }): Promise<RelayTaskInfo[]>;
-  getRelayTask(taskId: string): Promise<RelayTaskInfo>;
   retryRelayTask(taskId: string): Promise<{ ok: boolean; task_id: string }>;
   chatCompletion(body: unknown, signal?: AbortSignal): Promise<Response>;
-  getUsage(params?: { from?: string; to?: string; provider_id?: string; model_id?: string }): Promise<UsageStats>;
 
   // --- Prompt OTA (saas-prompt.ts) ---
   checkPromptUpdates(deviceId: string, currentVersions: Record<string, number>): Promise<PromptCheckResult>;
-  listPrompts(params?: { category?: string; source?: string; status?: string; page?: number; page_size?: number }): Promise<PaginatedResponse<PromptTemplateInfo>>;
-  getPrompt(name: string): Promise<PromptTemplateInfo>;
-  listPromptVersions(name: string): Promise<PromptVersionInfo[]>;
-  getPromptVersion(name: string, version: number): Promise<PromptVersionInfo>;
 
   // --- Telemetry (saas-telemetry.ts) ---
   reportTelemetry(data: {
@@ -531,9 +497,7 @@ export interface SaaSClient {
   incrementUsageDimension(dimension: string, count?: number): Promise<import('./saas-billing').UsageIncrementResult>;
   reportUsageFireAndForget(dimension: string, count?: number): void;
   listPlans(): Promise<import('./saas-types').BillingPlan[]>;
-  getPlan(planId: string): Promise<import('./saas-types').BillingPlan>;
   getSubscription(): Promise<import('./saas-types').SubscriptionInfo>;
-  getUsage(): Promise<import('./saas-types').UsageQuota>;
   createPayment(data: import('./saas-types').CreatePaymentRequest): Promise<import('./saas-types').PaymentResult>;
   getPaymentStatus(paymentId: string): Promise<import('./saas-types').PaymentStatus>;
 }