feat(ui): implement Discovery, Logs, and Live Log

- DeviceDiscovery: auto device detection with type and status
- LogsPage: comprehensive logs view with filters and stats
- RipTargetModal: target directory selection wizard
- ConfirmDialog: generic confirmation dialog component
- LiveLogSection: real-time job progress and logs
- Update App.tsx to include new pages

docker/ui/src/pages/Dashboard.tsx

@@ -2,6 +2,8 @@ import { useEffect, useState } from 'react'
 import axios from 'axios'
 import { Clock, Activity, HardDrive, BarChart, AlertCircle, CheckCircle, Disc, Play, Pause, SkipForward } from 'lucide-react'
 import { useDarkMode } from '../context/ThemeContext'
+import DeviceDiscovery from '../components/DeviceDiscovery'
+import LiveLogSection from '../components/LiveLogSection'
 
 interface Job {
   id: string
@@ -182,6 +184,12 @@ export default function Dashboard() {
         <p className={`text-sm ${theme === 'dark' ? 'text-slate-400' : 'text-slate-500'}`}>Übersicht über alle Ripping-Jobs und Geräte</p>
       </div>
 
+      {/* Device Discovery Section */}
+      <DeviceDiscovery />
+
+      {/* Live Log Section */}
+      <LiveLogSection />
+
       {/* Stats Cards */}
       <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4 transition-colors duration-300">
         <StatCard