feat(phase2): complete P1 tasks - Channels, Triggers, Skills CRUD and UI enhancements

Phase 2 P1 Tasks Completed:

API Layer (gateway-client.ts, gatewayStore.ts):
- Add Channels CRUD: getChannel, createChannel, updateChannel, deleteChannel
- Add Triggers CRUD: getTrigger, createTrigger, updateTrigger, deleteTrigger
- Add Skills CRUD: getSkill, createSkill, updateSkill, deleteSkill
- Add Scheduled Tasks API: createScheduledTask, deleteScheduledTask, toggleScheduledTask
- Add loadModels action for dynamic model list

UI Components:
- ModelsAPI.tsx: Dynamic model loading from API with loading/error states
- SchedulerPanel.tsx: Full CreateJobModal with cron/interval/once scheduling
- SecurityStatus.tsx: Loading states, error handling, retry functionality
- WorkflowEditor.tsx: New workflow creation/editing modal (new file)
- WorkflowHistory.tsx: Workflow execution history viewer (new file)
- WorkflowList.tsx: Integrated editor and history access

Configuration:
- Add 4 Hands TOML configs: clip, collector, predictor, twitter

Documentation (SYSTEM_ANALYSIS.md):
- Update API coverage: 65% → 89% (53/62 endpoints)
- Update UI completion: 85% → 92%
- Mark Phase 2 P1 tasks as completed
- Update technical debt cleanup status

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

desktop/src/components/SecurityStatus.tsx

@@ -1,5 +1,5 @@
 import { useEffect } from 'react';
-import { Shield, ShieldCheck, ShieldAlert, ShieldX, RefreshCw } from 'lucide-react';
+import { Shield, ShieldCheck, ShieldAlert, ShieldX, RefreshCw, Loader2, AlertCircle } from 'lucide-react';
 import { useGatewayStore } from '../store/gatewayStore';
 
 // OpenFang 16-layer security architecture names (Chinese)
@@ -25,6 +25,7 @@ const SECURITY_LAYER_NAMES: Record<string, string> = {
   // Layer 6: Audit & Logging
   'audit.logging': '审计日志',
   'audit.tracing': '请求追踪',
+  'audit.alerting': '审计告警',
 };
 
 // Default 16 layers for display when API returns minimal data
@@ -74,7 +75,13 @@ function getSecurityLabel(level: 'critical' | 'high' | 'medium' | 'low') {
 }
 
 export function SecurityStatus() {
-  const { connectionState, securityStatus, loadSecurityStatus } = useGatewayStore();
+  const {
+    connectionState,
+    securityStatus,
+    securityStatusLoading,
+    securityStatusError,
+    loadSecurityStatus,
+  } = useGatewayStore();
   const connected = connectionState === 'connected';
 
   useEffect(() => {
@@ -95,6 +102,44 @@ export function SecurityStatus() {
     );
   }
 
+  // Loading state
+  if (securityStatusLoading && !securityStatus) {
+    return (
+      <div className="rounded-xl border border-gray-200 bg-white p-4 shadow-sm">
+        <div className="flex items-center gap-2 mb-3">
+          <Loader2 className="w-4 h-4 text-gray-400 animate-spin" />
+          <span className="text-sm font-semibold text-gray-900">安全状态</span>
+        </div>
+        <p className="text-xs text-gray-400">加载中...</p>
+      </div>
+    );
+  }
+
+  // API error state - show friendly message
+  if (securityStatusError && !securityStatus) {
+    return (
+      <div className="rounded-xl border border-gray-200 bg-white p-4 shadow-sm">
+        <div className="flex items-center justify-between mb-3">
+          <div className="flex items-center gap-2">
+            <AlertCircle className="w-4 h-4 text-yellow-500" />
+            <span className="text-sm font-semibold text-gray-900">安全状态</span>
+          </div>
+          <button
+            onClick={() => loadSecurityStatus()}
+            className="p-1 text-gray-400 hover:text-orange-500 rounded transition-colors"
+            title="重试"
+          >
+            <RefreshCw className="w-3.5 h-3.5" />
+          </button>
+        </div>
+        <p className="text-xs text-gray-500 mb-2">API 不可用</p>
+        <p className="text-xs text-gray-400">
+          OpenFang 安全状态 API ({'/api/security/status'}) 在当前版本可能未实现
+        </p>
+      </div>
+    );
+  }
+
   // Use default layers if no data, or merge with API data
   const displayLayers = securityStatus?.layers?.length
     ? DEFAULT_LAYERS.map((defaultLayer) => {
@@ -117,6 +162,9 @@ export function SecurityStatus() {
         <div className="flex items-center gap-2">
           {getSecurityIcon(securityLevel)}
           <span className="text-sm font-semibold text-gray-900">安全状态</span>
+          {securityStatusLoading && (
+            <Loader2 className="w-3 h-3 text-gray-400 animate-spin" />
+          )}
         </div>
         <div className="flex items-center gap-2">
           <span className={`text-xs px-2 py-0.5 rounded-full border ${levelLabel.color}`}>
@@ -124,8 +172,9 @@ export function SecurityStatus() {
           </span>
           <button
             onClick={() => loadSecurityStatus()}
-            className="p-1 text-gray-400 hover:text-orange-500 rounded transition-colors"
+            className="p-1 text-gray-400 hover:text-orange-500 rounded transition-colors disabled:opacity-50"
             title="刷新安全状态"
+            disabled={securityStatusLoading}
           >
             <RefreshCw className="w-3.5 h-3.5" />
           </button>