Phase 4: KI-UI-Steuerung — AI agent UI control via WebSocket

- New ai_ui_control plugin: WS endpoint /ws/ai-ui-control, REST API (POST /command, GET /command/{id}/status, GET /online-users)
- UI-Command-Protocol: 6 command types (navigate, filter, open_contact, modal, tab, settings) with Pydantic schemas
- WebSocket manager: per-user connections, command delivery, feedback storage, stale cleanup
- Frontend useAIUIControl hook: WS client with auto-reconnect, command dispatch, feedback sending
- aiUIControlStore: Zustand store for command state, active modal/tab, pending filter/settings
- AIUIControlIndicator: visual KI indication (Bot icon, toast, pulse animation)
- ContactDetail integration: syncs activeTab and personModalOpen from AI control store
- AppShell integration: useAIUIControl hook + AIUIControlIndicator
- i18n keys for DE/EN
- 18 Vitest tests: command protocol, store actions, feedback, visual indication
- TSC: 0 new errors (only 2 pre-existing Dms.tsx errors)

frontend/src/components/contacts/ContactDetail.tsx

@@ -1,4 +1,4 @@
-import React, { useState } from 'react';
+import React, { useState, useEffect } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Button } from '@/components/ui/Button';
 import { Badge } from '@/components/ui/Badge';
@@ -11,6 +11,7 @@ import { Loader2 } from 'lucide-react';
 import * as LucideIcons from 'lucide-react';
 import { HistoryViewer } from '@/components/HistoryViewer';
 import { usePluginStore } from '@/store/pluginStore';
+import { useAIUIControlStore } from '@/store/aiUIControlStore';
 import { PluginPage } from '@/components/plugins/PluginLoader';
 import { useAuthStore } from '@/store/authStore';
 import {
@@ -155,6 +156,25 @@ export function ContactDetail({ contact, loading, onEdit, onDeleted }: ContactDe
   const [editingPerson, setEditingPerson] = useState<ContactPerson | null>(null);
   const [activeTab, setActiveTab] = useState('details');
   const pluginTabs = usePluginStore(s => s.getDetailTabsForEntity('contact'));
+  const aiActiveTab = useAIUIControlStore(s => s.activeTab);
+  const aiActiveModal = useAIUIControlStore(s => s.activeModal);
+
+  // Sync tab from AI UI Control (Phase 4.8)
+  useEffect(() => {
+    if (aiActiveTab) {
+      setActiveTab(aiActiveTab);
+    }
+  }, [aiActiveTab]);
+
+  // Sync modal from AI UI Control (Phase 4.7)
+  useEffect(() => {
+    if (aiActiveModal === 'edit' || aiActiveModal === 'create') {
+      setEditingPerson(null);
+      setPersonModalOpen(true);
+    } else if (aiActiveModal === 'close') {
+      setPersonModalOpen(false);
+    }
+  }, [aiActiveModal]);
   const user = useAuthStore(s => s.user);
 
   if (loading) {