feat: add category-based grouping for Sonarr series with anime and K-drama tag detection

Add tag fetching from Sonarr API and category_for() function to classify series based on normalized tags (anime, kdrama, standard). Parse tag labels/names into normalized strings removing non-alphanumeric characters for matching. Add category and category_label fields to series groups.

Update index route to build series_categories list grouping series by category key (anime/Anime, kdrama/K-Dramen, standard/Standard) and pass

templates/index.html

@@ -22,7 +22,7 @@
 {% for r in rows %}<tr data-title="{{ (r.title ~ ' ' ~ (r.year or ''))|lower }}" data-audio="{{ r.audio_languages|map(attribute='name')|join(',') }}" data-subs="{{ r.subtitle_languages|map(attribute='name')|join(',') }}" data-state="{{ r.state.label }}"><td><span class="title">{{ r.title }}</span><span class="year">{{ r.year or '' }}</span>{% if r.error %} ⚠{% endif %}</td><td><span class="badge {% if not r.missing %}quality{% endif %}">{{ r.quality }}</span></td><td><span class="state {{ r.state.class }}">{{ r.state.label }}</span></td><td><div class="badges">{% for l in r.audio_languages %}<span class="badge">{{ l.flag }} {{ l.name }}</span>{% else %}<span class="muted">—</span>{% endfor %}</div></td><td><div class="badges">{% for l in r.subtitle_languages %}<span class="badge">{{ l.flag }} {{ l.name }}</span>{% else %}<span class="muted">—</span>{% endfor %}</div></td><td>{{ r.video_codec }}</td><td>{{ r.size }}</td></tr>{% endfor %}
 </tbody></table></div></section>
 {% if sonarr_enabled %}<section id="sonarr" class="view" data-source="sonarr"><div class="stats"><span class="stat" id="seriesCount">{{ series|length }} Serien</span><span class="stat scan" id="sonarrStatus">Scan wird vorbereitet …</span><span class="stat">Dashboard: {{ local_series_path }}</span></div><div class="tablewrap" id="seriesList">
-{% for group in series %}<details class="series" open><summary>{{ group.title }} <span class="muted">({{ group.year or '—' }}) · {{ group.episodes|length }} Episoden</span></summary><table><thead><tr><th class="col-title">Episode</th><th class="col-quality">Quality</th><th class="col-state">Status</th><th class="col-audio">Audio</th><th class="col-subs">Untertitel</th><th class="col-video">Video</th><th class="col-size">Größe</th></tr></thead><tbody>{% for r in group.episodes %}<tr><td><span class="title">{{ r.title }}</span></td><td><span class="badge {% if not r.missing %}quality{% endif %}">{{ r.quality }}</span></td><td><span class="state {{ r.state.class }}">{{ r.state.label }}</span></td><td><div class="badges">{% for l in r.audio_languages %}<span class="badge">{{ l.flag }} {{ l.name }}</span>{% else %}<span class="muted">—</span>{% endfor %}</div></td><td><div class="badges">{% for l in r.subtitle_languages %}<span class="badge">{{ l.flag }} {{ l.name }}</span>{% else %}<span class="muted">—</span>{% endfor %}</div></td><td>{{ r.video_codec }}</td><td>{{ r.size }}</td></tr>{% endfor %}</tbody></table></details>{% endfor %}
+{% for category in series_categories %}{% if category.series %}<section class="series-category"><div class="series-category-heading"><h2>{{ category.label }}</h2><span>{{ category.series|length }} Serien</span></div>{% for group in category.series %}<details class="series" open><summary>{{ group.title }} <span class="muted">({{ group.year or '—' }}) · {{ group.episodes|length }} Episoden</span></summary><table><thead><tr><th class="col-title">Episode</th><th class="col-quality">Quality</th><th class="col-state">Status</th><th class="col-audio">Audio</th><th class="col-subs">Untertitel</th><th class="col-video">Video</th><th class="col-size">Größe</th></tr></thead><tbody>{% for r in group.episodes %}<tr><td><span class="title">{{ r.title }}</span></td><td><span class="badge {% if not r.missing %}quality{% endif %}">{{ r.quality }}</span></td><td><span class="state {{ r.state.class }}">{{ r.state.label }}</span></td><td><div class="badges">{% for l in r.audio_languages %}<span class="badge">{{ l.flag }} {{ l.name }}</span>{% else %}<span class="muted">—</span>{% endfor %}</div></td><td><div class="badges">{% for l in r.subtitle_languages %}<span class="badge">{{ l.flag }} {{ l.name }}</span>{% else %}<span class="muted">—</span>{% endfor %}</div></td><td>{{ r.video_codec }}</td><td>{{ r.size }}</td></tr>{% endfor %}</tbody></table></details>{% endfor %}</section>{% endif %}{% endfor %}
 </div></section>{% endif %}
 <section id="missing" class="view" data-source="radarr"><div class="stats"><span class="stat" id="missingCount">{{ missing_german_movies|length + (missing_german_series|map(attribute='episodes')|map('length')|sum) }} Einträge ohne Deutsch</span><span class="stat scan">Vorhanden oder wird gerade geladen · Staffel 0 ausgeblendet</span></div><div class="tablewrap missing-table">
 <table id="missingMovies"><thead><tr><th class="col-title">Film</th><th class="col-quality">Qualität</th><th class="col-state">Status</th><th class="col-audio">Audio</th><th class="col-subs">Untertitel</th><th class="col-video">Video</th><th class="col-size">Größe</th></tr></thead><tbody>{% for r in missing_german_movies %}<tr><td><span class="title">{{ r.title }}</span><span class="year">{{ r.year or '' }}</span></td><td><span class="badge {% if not r.missing %}quality{% endif %}">{{ r.quality }}</span></td><td><span class="state bad">Ohne Deutsch</span></td><td><div class="badges">{% for l in r.audio_languages %}<span class="badge">{{ l.flag }} {{ l.name }}</span>{% else %}<span class="muted">—</span>{% endfor %}</div></td><td><div class="badges">{% for l in r.subtitle_languages %}<span class="badge">{{ l.flag }} {{ l.name }}</span>{% else %}<span class="muted">—</span>{% endfor %}</div></td><td>{{ r.video_codec }}</td><td>{{ r.size }}</td></tr>{% endfor %}</tbody></table>
@@ -53,6 +53,7 @@ if('serviceWorker' in navigator)window.addEventListener('load',()=>navigator.ser
 <style>
 details.series{margin-bottom:8px;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#222}
 details.series:last-child{margin-bottom:0}
+.series-category{margin-bottom:16px}.series-category:last-child{margin-bottom:0}.series-category-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 14px;margin-bottom:8px;border:1px solid rgba(96,169,230,.2);border-radius:9px;background:linear-gradient(100deg,rgba(44,55,70,.9),rgba(34,34,34,.9))}.series-category-heading h2{margin:0;color:#e9f2fb;font-size:15px}.series-category-heading span{color:#9da5b2;font-size:11px}
 .nav-count{display:inline-block;min-width:18px;padding:1px 5px;margin-left:4px;border-radius:999px;background:#713030;color:#ffd9d9;font-size:10px}.empty-state{padding:28px;text-align:center;color:var(--muted)}.missing-table>table{border-bottom:1px solid var(--line)}.missing-series{border-radius:0!important;border-left:0!important;border-right:0!important;border-bottom:1px solid var(--line)!important}.missing-series:last-child{border-bottom:0!important}
 </style>
 <script>document.querySelectorAll('details.series').forEach(series => { series.open = false; });</script>