Add lyrics pipeline, playlist views, admin toggles, and player polish

Lyrics pipeline (Whisper + Demucs + description alignment):
- New GenerateLyricsJob runs WhisperX with VAD filtering and forced word
  alignment, writes per-track JSON to NAS.
- New DecorateLyricsJob calls the active LLM provider to bake one to
  several emojis into each line (heavy decoration prompt).
- LyricsDescriptionParser strips heading content, section markers, and
  emoji-decoration from a song's description while preserving every
  language verbatim.
- correct_whisper_with_description aligner: strong-match anchors only,
  vocal-region-aware gap-fill so missing verses land on actual singing.
- Owner UI for generate/regenerate/edit/delete in the player gear.

Admin pages:
- /admin/lyrics    toggles for VAD, vocal gap-fill, Demucs, master
- /admin/gpu       extracted GPU section, encoder picker, FFmpeg path
- /admin/backup    extracted users-and-settings export/import
- /admin/settings  now AI/LLM only with provider list and Test button
- /admin/nas-storage hosts NAS settings, repair, disable flow, browser
- Shared partials/settings-styles for a uniform look across pages.

Playlist view tracking:
- Migration adds playlists.view_count and playlist_views dedup table.
- Playlist::bumpViewIfNew increments per device with a one-hour window.
- Tracked from /playlists/{id}, /playlists/share/{token}, /ps/{token},
  and /videos/{id}?playlist={token}.  Dispatched after-response so it
  never blocks the page render.
- Loading a playlist on the video page now runs one query instead of
  the four the old getNextVideo/getPreviousVideo path triggered.
- View counts shown on every playlist card and the playlist hero.

Player polish:
- Floating mini-player is draggable, persists its position in
  localStorage, clamps to viewport on resize.
- Mini disabled entirely on mobile (less than 768px).
- New gear-menu Mini Player toggle (persists in localStorage) lets the
  user disable both scroll-activation and SPA-nav-activation.
- Close button keeps media playing when used on the player's own page.
- SPA navigator now swaps a #page-scripts container so per-page JS
  (channel tabs, etc.) gets re-executed after content swaps.

Storage layout:
- Runtime data moved from /storage/* to /data/* and gitignored.
- /ml/venv, /ml/cache, /ml/__pycache__ excluded.

Co-Authored-By: Claude Opus 4.7 <[email protected]>

resources/views/components/video-actions.blade.php

@@ -128,6 +128,8 @@
                 <i class="bi bi-pencil"></i>
                 <span>Edit</span>
             </button>
+            {{-- Lyrics generate/regenerate + edit now live inside the player's gear menu
+                 so they're always reachable on both mobile and desktop. --}}
             <button class="action-btn desktop-action" onclick="showDeleteModal('{{ $video->getRouteKey() }}', {{ json_encode($video->title) }})"
                 style="color:#ef4444;border-color:rgba(239,68,68,.35);">
                 <i class="bi bi-trash"></i>
@@ -542,9 +544,14 @@ if (!window._slideshowDlInit) {
         // the selected language track (window._ytpTrackId; 0 = primary).
         var vizOn   = localStorage.getItem('audioBarsOn') === '1';
         var trackId = window._ytpTrackId || 0;
+        // Burn lyrics into the download only when the viewer has them enabled AND
+        // they actually exist for the current track (the toggle button is visible).
+        var lyrBtn  = document.getElementById('ytpLyricsBtn');
+        var lyrOn   = localStorage.getItem('ytpLyricsOn') === '1' && lyrBtn && lyrBtn.style.display !== 'none';
         var _p = [];
         if (vizOn)   _p.push('visualizer=1');
         if (trackId) _p.push('track=' + trackId);
+        if (lyrOn)   _p.push('lyrics=1');
         var qs    = _p.length ? '?' + _p.join('&') : '';   // generate + download
         var qsAmp = _p.length ? '&' + _p.join('&') : '';   // appended to progress ?duration=