fix(ui): 空catch块添加日志 + ErrorBoundary覆盖高风险组件

空catch块修复 (12处, 6文件):
- ModelsAPI: 4处 localStorage 配置读写添加 console.warn
- VikingPanel: 2处 viking 操作添加日志
- Workspace/MCPServices/SaaSStatus/TOTPSettings: 各1-3处

ErrorBoundary新增覆盖:
- ChatArea: 两种UI模式均包裹(防白屏)
- RightPanel: 两种UI模式均包裹
- AuditLogsPanel/HeartbeatConfig/VikingPanel: 设置页包裹

desktop/src/components/Settings/MCPServices.tsx

@@ -25,7 +25,8 @@ export function MCPServices() {
     try {
       const running = await listMcpServices();
       setRunningServices(running);
-    } catch {
+    } catch (e) {
+      console.warn('[MCPServices] Failed to list services:', e);
       // MCP might not be available yet
       setRunningServices([]);
     }

desktop/src/components/Settings/ModelsAPI.tsx

@@ -80,8 +80,8 @@ function loadEmbeddingConfigBase(): Omit<EmbeddingConfig, 'apiKey'> & { apiKey:
       const parsed = JSON.parse(stored);
       return { ...parsed, apiKey: '' };
     }
-  } catch {
-    // ignore
+  } catch (e) {
+    console.warn('[ModelsAPI] Failed to load embedding config:', e);
   }
   return {
     provider: 'local',
@@ -99,8 +99,8 @@ function loadEmbeddingConfigBase(): Omit<EmbeddingConfig, 'apiKey'> & { apiKey:
 function saveEmbeddingConfigBase(config: Omit<EmbeddingConfig, 'apiKey'>): void {
   try {
     localStorage.setItem(EMBEDDING_STORAGE_KEY, JSON.stringify(config));
-  } catch {
-    // ignore
+  } catch (e) {
+    console.warn('[ModelsAPI] Failed to save embedding config:', e);
   }
 }
 
@@ -129,8 +129,8 @@ function loadCustomModelsBase(): CustomModel[] {
     if (stored) {
       return JSON.parse(stored);
     }
-  } catch {
-    // ignore
+  } catch (e) {
+    console.warn('[ModelsAPI] Failed to load model config:', e);
   }
   return [];
 }
@@ -143,8 +143,8 @@ function saveCustomModelsBase(models: CustomModel[]): void {
       return rest;
     });
     localStorage.setItem(STORAGE_KEY, JSON.stringify(sanitized));
-  } catch {
-    // ignore
+  } catch (e) {
+    console.warn('[ModelsAPI] Failed to save model config:', e);
   }
 }
 

desktop/src/components/Settings/SettingsLayout.tsx

@@ -149,7 +149,14 @@ export function SettingsLayout({ onBack }: SettingsLayoutProps) {
           </div>
         </div>
       );
-      case 'audit': return <AuditLogsPanel />;
+      case 'audit': return (
+          <ErrorBoundary
+            fallback={<div className="p-6 text-center text-gray-500">审计日志加载失败</div>}
+            onError={(err, info) => console.error('[Settings] Audit page error:', err, info.componentStack)}
+          >
+            <AuditLogsPanel />
+          </ErrorBoundary>
+        );
       case 'tasks': return (
         <div className="max-w-3xl">
           <h1 className="text-xl font-bold text-gray-900 mb-6">定时任务</h1>
@@ -159,11 +166,23 @@ export function SettingsLayout({ onBack }: SettingsLayoutProps) {
         </div>
       );
       case 'heartbeat': return (
-        <div className="max-w-3xl h-full">
-          <HeartbeatConfig />
-        </div>
+        <ErrorBoundary
+          fallback={<div className="p-6 text-center text-gray-500">心跳配置加载失败</div>}
+          onError={(err, info) => console.error('[Settings] Heartbeat page error:', err, info.componentStack)}
+        >
+          <div className="max-w-3xl h-full">
+            <HeartbeatConfig />
+          </div>
+        </ErrorBoundary>
+      );
+      case 'viking': return (
+        <ErrorBoundary
+          fallback={<div className="p-6 text-center text-gray-500">语义记忆加载失败</div>}
+          onError={(err, info) => console.error('[Settings] Viking page error:', err, info.componentStack)}
+        >
+          <VikingPanel />
+        </ErrorBoundary>
       );
-      case 'viking': return <VikingPanel />;
       case 'feedback': return <Feedback />;
       case 'about': return <About />;
       default: return <General />;