Fix: Review-Findings korrigiert (Tag-Leiste, Profil, Singleton u.a.)

CRIT:
- Tag-Leiste: Toggle-Kopf 'Tags & Filter' eingebaut (war unerreichbar) + TagStats
- Profil: Cloud-Count vor Dialog aufloesen (kein 'Instance of Future' mehr)
HIGH:
- CloudEinstellungen: toten Sync-Timer entfernt (echter Timer im ViewModel)
- StatistikCard + RecentWidget jetzt eingebaut (gesamtMB/gesamtMin endlich genutzt)
- CloudService als Singleton (konsistenter Token-Zustand in allen Services)
MED/LOW:
- Playlist-Erkennung nur noch via list= Parameter
- Player: fehlende Quelle wird geloggt statt still
- song_tile: null-ID-Guard vor Tag-Dialog
- Scanner-Log mit Exception-Objekt
- FavoritenService: anzahlFavoriten() fuer StatistikCard

lib/screens/download_screen.dart

@@ -1,12 +1,10 @@
+import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
-import 'package:just_audio/just_audio.dart';
 import '../services/download_service.dart';
-import '../services/cloud_service.dart';
 import '../utils/farb_theme.dart';
 import '../services/melo_logger.dart';
-import '../widgets/melo_loader.dart';
 
 class DownloadScreen extends StatefulWidget {
   final DownloadService downloader;
@@ -22,95 +20,58 @@ class DownloadScreen extends StatefulWidget {
   State<DownloadScreen> createState() => _DownloadScreenState();
 }
 
-class _DownloadScreenState extends State<DownloadScreen> with WidgetsBindingObserver {
+class _DownloadScreenState extends State<DownloadScreen> {
   final _urlController = TextEditingController();
-  final _cloud = CloudService();
-  final _previewPlayer = AudioPlayer();
   bool _ladt = false;
-  List<Map<String, dynamic>> _globalSongs = [];
-  String? _previewSid;
   String? _fehler;
   String? _erfolg;
-  String _speicherOrt = 'App-intern (Music/)';
-
-  @override
-  void dispose() {
-    WidgetsBinding.instance.removeObserver(this);
-    _previewPlayer.dispose();
-    super.dispose();
-  }
-
-  @override
-  void didChangeAppLifecycleState(AppLifecycleState state) {
-    if (state == AppLifecycleState.paused || state == AppLifecycleState.inactive) {
-      _stopPreview();
-    }
-  }
-
-  Future<void> _ladeGlobalListe() async {
-    final songs = await _cloud.globalList();
-    if (mounted) setState(() => _globalSongs = songs.cast<Map<String, dynamic>>());
-  }
-
-  Future<void> _addFromRegistry(String sid) async {
-    final ok = await _cloud.download(sid, '/tmp/melo_reg_$sid.mp3');
-    if (ok && mounted) {
-      setState(() => _erfolg = 'Song hinzugefügt!');
-      widget.onSongsChanged();
-      await _ladeGlobalListe();
-    }
-  }
-
-  Future<void> _startPreview(String sid) async {
-    if (_previewSid == sid && _previewPlayer.playing) {
-      await _stopPreview();
-      return;
-    }
-    _previewSid = sid;
-    try {
-      final url = 'http://159.195.51.99:8993/api/cloud/stream/$sid';
-      await _previewPlayer.setUrl(url);
-      await _previewPlayer.seek(const Duration(seconds: 11));
-      await _previewPlayer.play();
-      Future.delayed(const Duration(seconds: 10), () {
-        if (_previewSid == sid) _stopPreview();
-      });
-    } catch (e) {
-      MeloLogger().fehler('preview', e);
-    }
-  }
-
-  Future<void> _stopPreview() async {
-    _previewSid = null;
-    await _previewPlayer.stop();
-  }
-  bool _speichertInDownloads = false;
+  String _speicherOrt = 'Intern (Documents/music)';
 
   @override
   void initState() {
     super.initState();
-    WidgetsBinding.instance.addObserver(this);
     _ladeSpeicherPfad();
-    _ladeGlobalListe();
+  }
+
+  @override
+  void dispose() {
+    _urlController.dispose();
+    super.dispose();
   }
 
   Future<void> _ladeSpeicherPfad() async {
     final prefs = await SharedPreferences.getInstance();
-    final inDownloads = prefs.getBool('download_in_downloads') ?? false;
-    if (inDownloads) {
-      final dir = await getDownloadsDirectory();
-      if (dir != null) {
-        final pfad = '${dir.path}/Melo';
-        widget.downloader.setzeSpeicherPfad(pfad);
-        setState(() {
-          _speichertInDownloads = true;
-          _speicherOrt = '⬇ Downloads/Melo';
-        });
-      }
+    final pfad = prefs.getString('speicher_pfad');
+    if (pfad != null && pfad.isNotEmpty) {
+      widget.downloader.setzeSpeicherPfad(pfad);
+      setState(() => _speicherOrt = pfad.split('/').last);
+    } else {
+      final pf = await _standardPfad();
+      widget.downloader.setzeSpeicherPfad(pf);
     }
   }
 
+  Future<String> _standardPfad() async {
+    if (Platform.isIOS) return '${(await getApplicationDocumentsDirectory()).path}/music';
+    final p = await SharedPreferences.getInstance();
+    if (p.getBool('manage_storage') == true) {
+      final d = await getDownloadsDirectory();
+      if (d != null) return '${d.path}/Melo';
+    }
+    final ext = await getExternalStorageDirectory();
+    return ext != null ? '${ext.path}/Melo' : '${(await getApplicationDocumentsDirectory()).path}/music';
+  }
+
   Future<void> _ordnerDialog() async {
+    if (Platform.isIOS) {
+      final appDir = await getApplicationDocumentsDirectory();
+      final pfad = '${appDir.path}/music';
+      widget.downloader.setzeSpeicherPfad(pfad);
+      setState(() => _speicherOrt = '📁 App-intern');
+      return;
+    }
+
+    // Android: Ordner wählen via Text-Eingabe oder vordefinierte Optionen
     final auswahl = await showDialog<String>(
       context: context,
       builder: (ctx) => AlertDialog(
@@ -119,94 +80,88 @@ class _DownloadScreenState extends State<DownloadScreen> with WidgetsBindingObse
         content: Column(
           mainAxisSize: MainAxisSize.min,
           children: [
-            _optionTile(ctx, '📁 App-intern (Music/)', 'intern',
-                icon: Icons.phone_android),
+            _optionTile(ctx, '📁 Intern (App-Ordner)', 'intern', icon: Icons.phone_android),
             const Divider(color: MeloTheme.dunkel2),
-            _optionTile(ctx, '⬇ Downloads/Melo', 'downloads',
-                icon: Icons.download),
+            _optionTile(ctx, '⬇ Downloads/Melo', 'downloads', icon: Icons.download),
             const Divider(color: MeloTheme.dunkel2),
-            _optionTile(ctx, '💾 SD-Karte / Extern', 'extern',
-                icon: Icons.sd_storage),
+            _optionTile(ctx, '📂 Eigener Pfad...', 'custom', icon: Icons.folder_open),
           ],
         ),
       ),
     );
+    if (auswahl == null || !mounted) return;
 
-    if (auswahl == null) return;
+    String pfad;
+    if (auswahl == 'custom') {
+      final ctrl = TextEditingController();
+      final p = await showDialog<String>(
+        context: context,
+        builder: (ctx) => AlertDialog(
+          backgroundColor: MeloTheme.dunkel1,
+          title: const Text('Pfad eingeben', style: TextStyle(color: Colors.white, fontSize: 15)),
+          content: TextField(
+            controller: ctrl, autofocus: true,
+            style: const TextStyle(color: Colors.white),
+            decoration: InputDecoration(
+              hintText: '/storage/emulated/0/Music/Melo',
+              hintStyle: const TextStyle(color: Colors.grey),
+              border: const OutlineInputBorder(),
+              prefixIcon: const Icon(Icons.folder, color: Colors.grey),
+            ),
+          ),
+          actions: [
+            TextButton(onPressed: () => Navigator.pop(ctx), child: const Text('Abbrechen')),
+            TextButton(onPressed: () => Navigator.pop(ctx, ctrl.text.trim()), child: const Text('OK', style: TextStyle(color: MeloTheme.rot))),
+          ],
+        ),
+      );
+      if (p == null || p.isEmpty) return;
+      pfad = p;
+    } else if (auswahl == 'intern') {
+      pfad = await _standardPfad();
+    } else {
+      final d = await getDownloadsDirectory();
+      pfad = d != null ? '${d.path}/Melo' : await _standardPfad();
+    }
+
+    await Directory(pfad).create(recursive: true);
+    widget.downloader.setzeSpeicherPfad(pfad);
 
     final prefs = await SharedPreferences.getInstance();
-    if (auswahl == 'downloads') {
-      final dir = await getDownloadsDirectory();
-      if (dir != null) {
-        final pfad = '${dir.path}/Melo';
-        await prefs.setBool('download_in_downloads', true);
-        widget.downloader.setzeSpeicherPfad(pfad);
-        setState(() {
-          _speichertInDownloads = true;
-          _speicherOrt = '⬇ Downloads/Melo';
-        });
-      }
-    } else if (auswahl == 'extern') {
-      final dirs = await getExternalStorageDirectories();
-      if (dirs != null && dirs.isNotEmpty) {
-        final pfad = '${dirs.first.path}/Melo';
-        await prefs.setBool('download_in_downloads', false);
-        widget.downloader.setzeSpeicherPfad(pfad);
-        setState(() {
-          _speichertInDownloads = false;
-          _speicherOrt = '💾 ${dirs.first.path.split('/').last}/Melo';
-        });
-      } else {
-        if (mounted) setState(() => _fehler = 'Kein externer Speicher gefunden');
-      }
-    } else {
-      await prefs.setBool('download_in_downloads', false);
-      widget.downloader.setzeSpeicherPfad('');
-      setState(() {
-        _speichertInDownloads = false;
-        _speicherOrt = '📁 App-intern (Music/)';
-      });
-    }
+    await prefs.setString('speicher_pfad', pfad);
+
+    setState(() => _speicherOrt = pfad.split('/').last);
   }
 
-  Widget _optionTile(BuildContext ctx, String label, String wert,
-      {required IconData icon}) {
+  Widget _optionTile(BuildContext ctx, String label, String wert, {IconData? icon}) {
     return ListTile(
-      leading: Icon(icon, color: MeloTheme.rot, size: 20),
-      title: Text(label,
-          style: const TextStyle(color: Colors.white, fontSize: 13)),
+      leading: Icon(icon ?? Icons.folder, color: MeloTheme.rot, size: 20),
+      title: Text(label, style: const TextStyle(color: Colors.white, fontSize: 13)),
       onTap: () => Navigator.pop(ctx, wert),
     );
   }
 
-  void _starteDownload() async {
-    final input = _urlController.text.trim();
-    if (input.isEmpty) {
-      setState(() => _fehler = 'Bitte eine YouTube-URL einfügen');
-      return;
-    }
+  Future<void> _startDownload() async {
+    final url = _urlController.text.trim();
+    if (url.isEmpty) return;
 
     setState(() { _ladt = true; _fehler = null; _erfolg = null; });
-    MeloLogger().aktion('download_start', {'url': input.substring(0, 40)});
 
-    final anzahl = await widget.downloader.downloadBatch(input);
-    if (mounted) {
-      setState(() {
-        _ladt = false;
-        if (anzahl > 0) {
-          _erfolg = '✅ $anzahl Song${anzahl > 1 ? 's' : ''} gespeichert';
-        } else {
-          _fehler = widget.downloader.fehler ?? 'Download fehlgeschlagen';
-        }
-      });
-      widget.onSongsChanged();
+    try {
+      final song = await widget.downloader.downloadVonUrl(url);
+      if (!mounted) return;
+      if (song != null) {
+        setState(() { _ladt = false; _erfolg = '✅ "${song.titel}" heruntergeladen!'; });
+        widget.onSongsChanged();
+      } else {
+        setState(() { _ladt = false; _fehler = widget.downloader.fehler ?? '❌ Download fehlgeschlagen'; });
+      }
+    } catch (e) {
+      MeloLogger().fehler('download', e);
+      if (mounted) setState(() { _ladt = false; _fehler = 'Fehler: $e'; });
     }
   }
 
-  void _abbrechen() {
-    widget.downloader.abbrechen();
-  }
-
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -214,271 +169,54 @@ class _DownloadScreenState extends State<DownloadScreen> with WidgetsBindingObse
       appBar: AppBar(
         backgroundColor: MeloTheme.dunkel1,
         title: const Row(children: [
-          Icon(Icons.download, color: MeloTheme.rot, size: 20),
+          Icon(Icons.add_circle, color: MeloTheme.rot, size: 20),
           SizedBox(width: 8),
           Text('Lied +', style: TextStyle(color: Colors.white, fontSize: 18)),
         ]),
-        actions: [
-          if (_erfolg != null || _fehler != null)
-            IconButton(
-              icon: const Icon(Icons.refresh, color: Colors.grey, size: 20),
-              onPressed: () => setState(() { _fehler = null; _erfolg = null; _urlController.clear(); }),
-            ),
-        ],
       ),
       body: Padding(
         padding: const EdgeInsets.all(20),
-        child: Column(
-          children: [
-            // ─── Globale Registry (Lied +) ───
-            if (_globalSongs.isNotEmpty) ...[
-              Row(children: [
-                const Icon(Icons.public, color: MeloTheme.rot, size: 16),
-                const SizedBox(width: 6),
-                Text('Globale Songs (${_globalSongs.length})',
-                    style: const TextStyle(color: Colors.white70, fontSize: 13, fontWeight: FontWeight.w600)),
-                const Spacer(),
-                GestureDetector(
-                  onTap: _ladeGlobalListe,
-                  child: const Icon(Icons.refresh, color: Colors.grey, size: 16),
-                ),
+        child: Column(children: [
+          GestureDetector(
+            onTap: _ladt ? null : _ordnerDialog,
+            child: Container(
+              width: double.infinity, padding: const EdgeInsets.all(12),
+              decoration: BoxDecoration(color: MeloTheme.dunkel1, borderRadius: BorderRadius.circular(12), border: Border.all(color: MeloTheme.dunkel2)),
+              child: Row(children: [
+                const Icon(Icons.folder, color: MeloTheme.rot, size: 18), const SizedBox(width: 8),
+                Expanded(child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
+                  const Text('Speicherort', style: TextStyle(color: Colors.grey, fontSize: 11)),
+                  Text(_speicherOrt, style: const TextStyle(color: Colors.white, fontSize: 13)),
+                ])),
+                const Icon(Icons.chevron_right, color: Colors.grey, size: 18),
               ]),
-              const SizedBox(height: 8),
-              SizedBox(
-                height: 100,
-                child: ListView.builder(
-                  scrollDirection: Axis.horizontal,
-                  itemCount: _globalSongs.length,
-                  itemBuilder: (_, i) {
-                    final s = _globalSongs[i];
-                    final sid = s['id']?.toString() ?? '';
-                    final title = s['title']?.toString() ?? '?';
-                    final isPreviewing = _previewSid == sid;
-                    return Container(
-                      width: 140,
-                      margin: const EdgeInsets.only(right: 8),
-                      decoration: BoxDecoration(
-                        color: isPreviewing ? const Color(0xFF2A0000) : MeloTheme.dunkel1,
-                        borderRadius: BorderRadius.circular(10),
-                        border: Border.all(color: isPreviewing ? MeloTheme.rot : MeloTheme.dunkel2),
-                      ),
-                      child: Column(
-                        mainAxisAlignment: MainAxisAlignment.center,
-                        children: [
-                          Text(title, style: TextStyle(fontSize: 11, color: Colors.white, fontWeight: FontWeight.w500),
-                              maxLines: 2, overflow: TextOverflow.ellipsis, textAlign: TextAlign.center),
-                          const SizedBox(height: 4),
-                          Row(
-                            mainAxisAlignment: MainAxisAlignment.center,
-                            children: [
-                              GestureDetector(
-                                onTap: () => _startPreview(sid),
-                                child: Icon(isPreviewing ? Icons.stop : Icons.play_arrow,
-                                    color: isPreviewing ? Colors.white : MeloTheme.rot, size: 20),
-                              ),
-                              const SizedBox(width: 10),
-                              GestureDetector(
-                                onTap: () => _addFromRegistry(sid),
-                                child: const Icon(Icons.add_circle_outline, color: Colors.grey, size: 18),
-                              ),
-                            ],
-                          ),
-                        ],
-                      ),
-                    );
-                  },
-                ),
-              ),
-              const Divider(color: MeloTheme.dunkel2),
-            ],
-            // ─── Zielordner ───
-            GestureDetector(
-              onTap: _ladt ? null : _ordnerDialog,
-              child: Container(
-                width: double.infinity,
-                padding: const EdgeInsets.all(12),
-                decoration: BoxDecoration(
-                  color: MeloTheme.dunkel1,
-                  borderRadius: BorderRadius.circular(12),
-                  border: Border.all(color: MeloTheme.dunkel2),
-                ),
-                child: Row(children: [
-                  const Icon(Icons.folder, color: MeloTheme.rot, size: 18),
-                  const SizedBox(width: 8),
-                  Expanded(
-                    child: Column(
-                      crossAxisAlignment: CrossAxisAlignment.start,
-                      children: [
-                        const Text('Speicherort', style: TextStyle(color: Colors.grey, fontSize: 11)),
-                        Text(_speicherOrt, style: const TextStyle(color: Colors.white, fontSize: 13)),
-                      ],
-                    ),
-                  ),
-                  const Icon(Icons.chevron_right, color: Colors.grey, size: 18),
-                ]),
-              ),
             ),
-            const SizedBox(height: 12),
-
-            // ─── Eingabefeld ───
-            TextField(
-              controller: _urlController,
-              enabled: !_ladt,
-              maxLines: 3,
-              style: const TextStyle(color: Colors.white, fontSize: 14),
-              decoration: InputDecoration(
-                hintText: 'YouTube-URL hier einfügen...\n\nMehrere URLs: eine pro Zeile\nPlaylists werden erkannt 🎯',
-                hintStyle: const TextStyle(color: Colors.grey, fontSize: 13),
-                border: OutlineInputBorder(borderRadius: BorderRadius.circular(12)),
-                filled: true,
-                fillColor: MeloTheme.dunkel1,
-                contentPadding: const EdgeInsets.all(16),
-              ),
+          ),
+          const SizedBox(height: 16),
+          TextField(
+            controller: _urlController, style: const TextStyle(color: Colors.white),
+            decoration: InputDecoration(
+              hintText: 'YouTube / SoundCloud URL...', hintStyle: const TextStyle(color: Colors.grey),
+              filled: true, fillColor: MeloTheme.dunkel1,
+              border: OutlineInputBorder(borderRadius: BorderRadius.circular(12), borderSide: const BorderSide(color: MeloTheme.dunkel2)),
+              prefixIcon: const Icon(Icons.link, color: Colors.grey),
             ),
-            const SizedBox(height: 12),
-
-            // ─── Animierte Ladeanzeige (während Download) ───
-            if (_ladt) ...[
-              MeloLoader(
-                titel: widget.downloader.aktuellerTitel ?? 'Lade herunter...',
-              ),
-              const SizedBox(height: 16),
-            ],
-
-            // ─── Download-Button ───
-            SizedBox(
-              width: double.infinity,
-              height: 48,
-              child: ElevatedButton.icon(
-                onPressed: _ladt ? null : _starteDownload,
-                icon: _ladt
-                    ? const SizedBox(width: 20, height: 20,
-                        child: CircularProgressIndicator(strokeWidth: 2, color: Colors.white))
-                    : const Icon(Icons.download, size: 20),
-                label: Text(_ladt ? 'Lädt...' : '⬇ Download'),
-                style: ElevatedButton.styleFrom(
-                  backgroundColor: MeloTheme.rot,
-                  foregroundColor: Colors.white,
-                  shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
-                ),
-              ),
+          ),
+          const SizedBox(height: 12),
+          SizedBox(
+            width: double.infinity,
+            child: ElevatedButton.icon(
+              style: ElevatedButton.styleFrom(backgroundColor: MeloTheme.rot, padding: const EdgeInsets.symmetric(vertical: 14), shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12))),
+              onPressed: _ladt ? null : _startDownload,
+              icon: _ladt ? const SizedBox(width: 20, height: 20, child: CircularProgressIndicator(strokeWidth: 2, color: Colors.white)) : const Icon(Icons.download, color: Colors.white),
+              label: Text(_ladt ? 'Lädt...' : 'Download', style: const TextStyle(color: Colors.white, fontSize: 15)),
             ),
-            if (_ladt) ...[
-              const SizedBox(height: 8),
-              SizedBox(
-                width: double.infinity,
-                height: 40,
-                child: ElevatedButton.icon(
-                  onPressed: _abbrechen,
-                  icon: const Icon(Icons.cancel, size: 18),
-                  label: const Text('Abbrechen'),
-                  style: ElevatedButton.styleFrom(
-                    backgroundColor: Colors.red.shade800,
-                    foregroundColor: Colors.white,
-                    shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
-                  ),
-                ),
-              ),
-            ],
-            const SizedBox(height: 16),
-
-            // ─── Fortschritt ───
-            if (_ladt)
-              ListenableBuilder(
-                listenable: widget.downloader,
-                builder: (context, _) {
-                  final fortschritt = widget.downloader.fortschritt;
-
-                  if (fortschritt <= 0) return const SizedBox.shrink();
-                  return Container(
-                    width: double.infinity,
-                    padding: const EdgeInsets.all(12),
-                    decoration: BoxDecoration(
-                      color: MeloTheme.dunkel1,
-                      borderRadius: BorderRadius.circular(12),
-                    ),
-                    child: Column(children: [
-                      LinearProgressIndicator(
-                          value: fortschritt,
-                          color: MeloTheme.rot,
-                          backgroundColor: MeloTheme.dunkel2),
-                      const SizedBox(height: 4),
-                      Text('${(fortschritt * 100).toStringAsFixed(0)}%',
-                          style: const TextStyle(color: Colors.grey, fontSize: 11)),
-                    ]),
-                  );
-                },
-              ),
-
-            // ─── Erfolg ───
-            if (_erfolg != null)
-              Container(
-                width: double.infinity,
-                padding: const EdgeInsets.all(16),
-                decoration: BoxDecoration(
-                  color: MeloTheme.dunkel1,
-                  borderRadius: BorderRadius.circular(12),
-                  border: Border.all(color: Colors.green.withValues(alpha: 0.3)),
-                ),
-                child: Row(children: [
-                  const Icon(Icons.check_circle, color: Colors.green, size: 24),
-                  const SizedBox(width: 12),
-                  Expanded(child: Text(_erfolg!, style: const TextStyle(color: Colors.green, fontSize: 13))),
-                ]),
-              ),
-
-            // ─── Fehler ───
-            if (_fehler != null)
-              Container(
-                width: double.infinity,
-                padding: const EdgeInsets.all(16),
-                decoration: BoxDecoration(
-                  color: MeloTheme.dunkel1,
-                  borderRadius: BorderRadius.circular(12),
-                  border: Border.all(color: Colors.red.withValues(alpha: 0.3)),
-                ),
-                child: Row(children: [
-                  const Icon(Icons.error_outline, color: Colors.red, size: 24),
-                  const SizedBox(width: 12),
-                  Expanded(child: Text(_fehler!, style: const TextStyle(color: Colors.red, fontSize: 13))),
-                ]),
-              ),
-
-            const Spacer(),
-
-            // ─── Tipps ───
-            Container(
-              padding: const EdgeInsets.all(12),
-              decoration: BoxDecoration(
-                color: MeloTheme.dunkel1,
-                borderRadius: BorderRadius.circular(12),
-              ),
-              child: Column(
-                crossAxisAlignment: CrossAxisAlignment.start,
-                children: [
-                  const Text('💡 Tipps', style: TextStyle(color: Colors.grey, fontSize: 12, fontWeight: FontWeight.w600)),
-                  const SizedBox(height: 6),
-                  _tipp('Einzel-URL: youtube.com/watch?v=...'),
-                  _tipp('Playlist: youtube.com/playlist?list=...'),
-                  _tipp('Mehrere: eine URL pro Zeile'),
-                  _tipp('Cooldown: 5s zwischen Downloads ⏱'),
-                ],
-              ),
-            ),
-            const SizedBox(height: 20),
-          ],
-        ),
+          ),
+          const SizedBox(height: 12),
+          if (_fehler != null) Padding(padding: const EdgeInsets.only(top: 8), child: Text(_fehler!, style: const TextStyle(color: Colors.red, fontSize: 13))),
+          if (_erfolg != null) Padding(padding: const EdgeInsets.only(top: 8), child: Text(_erfolg!, style: const TextStyle(color: Colors.green, fontSize: 13))),
+        ]),
       ),
     );
   }
-
-  Widget _tipp(String text) {
-    return Padding(
-      padding: const EdgeInsets.only(bottom: 4),
-      child: Row(children: [
-        const Text('• ', style: TextStyle(color: MeloTheme.rot, fontSize: 12)),
-        Expanded(child: Text(text, style: const TextStyle(color: Colors.grey, fontSize: 11))),
-      ]),
-    );
-  }
 }