feat: parametres - filtres contenu, categories, repertoire (#9, #10, #11, #12)

- Filtre recommandations (all/anime/series)
- Filtre dernieres sorties (all/anime/series)
- Toggle categories anime/series (min 1 active)
- Repertoire de telechargement personnalisable
- Migration automatique des nouvelles colonnes SQLite
- Template settings avec tous les nouveaux controles
- Validation cote backend (400 si les deux categories desactivees)

Closes #9, Closes #10, Closes #11, Closes #12

app/routers/router_settings.py

@@ -39,6 +39,11 @@ async def get_settings(
         default_lang=settings_obj.default_lang,
         theme=settings_obj.theme,
         disabled_providers=settings_obj.disabled_providers,
+        recommendations_filter=getattr(settings_obj, 'recommendations_filter', 'all'),
+        releases_filter=getattr(settings_obj, 'releases_filter', 'all'),
+        anime_enabled=getattr(settings_obj, 'anime_enabled', True),
+        series_enabled=getattr(settings_obj, 'series_enabled', True),
+        download_dir=getattr(settings_obj, 'download_dir', 'downloads'),
     )
 
 
@@ -65,6 +70,22 @@ async def update_settings(
         settings_obj.theme = update_data.theme
     if update_data.disabled_providers is not None:
         settings_obj.disabled_providers = update_data.disabled_providers
+    if update_data.recommendations_filter is not None:
+        settings_obj.recommendations_filter = update_data.recommendations_filter
+    if update_data.releases_filter is not None:
+        settings_obj.releases_filter = update_data.releases_filter
+    if update_data.anime_enabled is not None:
+        # Prevent disabling both categories
+        if not update_data.anime_enabled and not getattr(settings_obj, 'series_enabled', True):
+            raise HTTPException(status_code=400, detail="Au moins une categorie doit rester active")
+        settings_obj.anime_enabled = update_data.anime_enabled
+    if update_data.series_enabled is not None:
+        # Prevent disabling both categories
+        if not update_data.series_enabled and not getattr(settings_obj, 'anime_enabled', True):
+            raise HTTPException(status_code=400, detail="Au moins une categorie doit rester active")
+        settings_obj.series_enabled = update_data.series_enabled
+    if update_data.download_dir is not None:
+        settings_obj.download_dir = update_data.download_dir
 
     session.add(settings_obj)
     session.commit()