fix(desktop): console.log 清理 — 替换为结构化 logger

将 desktop/src 中 23 处 console.log 替换为 createLogger() 结构化日志:
- 生产构建自动静默 debug/info 级别
- 保留 console.error 用于关键错误可见性
- 新增 dompurify 依赖修复 XSS 防护引入缺失

涉及文件: App.tsx, offlineStore.ts, autonomy-manager.ts,
gateway-auth.ts, llm-service.ts, request-helper.ts,
security-index.ts, skill-discovery.ts, use-onboarding.ts 等 16 个文件

desktop/src/components/AgentOnboardingWizard.tsx

@@ -27,6 +27,9 @@ import { ScenarioTags } from './ScenarioTags';
 import type { Clone } from '../store/agentStore';
 import { intelligenceClient } from '../lib/intelligence-client';
 import { generateSoulContent, generateUserContent } from '../lib/personality-presets';
+import { createLogger } from '../lib/logger';
+
+const log = createLogger('AgentOnboardingWizard');
 
 // === Types ===
 
@@ -215,9 +218,9 @@ export function AgentOnboardingWizard({ isOpen, onClose, onSuccess }: AgentOnboa
           // Write USER.md (user profile)
           await intelligenceClient.identity.updateFile(clone.id, 'user_profile', userContent);
 
-          console.log('[Onboarding] SOUL.md and USER.md persisted for agent:', clone.id);
+          log.debug('SOUL.md and USER.md persisted for agent:', clone.id);
         } catch (err) {
-          console.warn('[Onboarding] Failed to persist identity files:', err);
+          log.warn('Failed to persist identity files:', err);
           // Don't fail the whole onboarding if identity persistence fails
         }
 

desktop/src/components/PipelineResultPreview.tsx

@@ -23,6 +23,7 @@ import {
 } from 'lucide-react';
 import { PipelineRunResponse } from '../lib/pipeline-client';
 import { useToast } from './ui/Toast';
+import DOMPurify from 'dompurify';
 import { ClassroomPreviewer, type ClassroomData } from './ClassroomPreviewer';
 
 // === Types ===