Add unified logs platform with Helm-managed central Elasticsearch.

Deploy cloudhost-logging on cluster registration, ship app and optional service logs to ES with owner isolation, and fix Kibana 8.12 auth via kibana_system.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/app/dashboard/apps/[id]/page.tsx

@@ -6,7 +6,8 @@ import api from '@/lib/api';
 import { toast } from 'react-toastify';
 import type { Application, Deployment, ResourceUsage, ClusterPublic, ClusterPoolPublic, AppSnapshot, K8sRevisionData, K8sRevision, ServiceAccessGrant, ServiceAccessTarget } from '@/types';
 import { useState, useRef, useCallback, useEffect } from 'react';
-import { Hexagon, Rocket, Play, Square, RotateCw, Globe, Package, Server, Scale, CheckCircle, Clock, XCircle, AlertCircle, Link, GitBranch, KeyRound, FolderUp, BarChart3, ChevronDown, FileText, Monitor, Hammer, Settings, RefreshCw, Upload, Circle, Pin, Database, Eye, EyeOff, Copy, Check, History, Download, RotateCcw, Camera, Trash2, Archive, Zap, Wallet, CreditCard, AlertTriangle, ShieldAlert, ExternalLink } from 'lucide-react';
+import NextLink from 'next/link';
+import { Hexagon, Rocket, Play, Square, RotateCw, Globe, Package, Server, Scale, CheckCircle, Clock, XCircle, AlertCircle, Link, GitBranch, KeyRound, FolderUp, BarChart3, ChevronDown, FileText, Monitor, Hammer, Settings, RefreshCw, Upload, Circle, Pin, Database, Eye, EyeOff, Copy, Check, History, Download, RotateCcw, Camera, Trash2, Archive, Zap, Wallet, CreditCard, AlertTriangle, ShieldAlert, ExternalLink, ScrollText } from 'lucide-react';
 import { useConfirm } from '@/components/confirm-modal';
 import { BuildProgressModal } from '@/components/build-progress-modal';
 
@@ -925,6 +926,14 @@ export default function AppDetailPage() {
                   {previewMutation.isPending ? <><Clock className="w-3 h-3 inline animate-spin" /></> : <><Globe className="w-3 h-3 inline" /> Preview</>}
                 </button>
               )}
+              {app.enableElasticsearch && (
+                <NextLink
+                  href={`/dashboard/logs?appId=${appId}`}
+                  className="text-sm px-4 py-2 rounded-xl font-medium bg-slate-50 text-slate-700 hover:bg-slate-100 border border-slate-200 transition-all active:scale-[0.98] inline-flex items-center gap-1"
+                >
+                  <ScrollText className="w-3 h-3" /> Logs
+                </NextLink>
+              )}
             </>
           )}
           <button onClick={handleDelete} disabled={deleteMutation.isPending} className="btn-danger text-sm disabled:opacity-50">