feat: flat design Sunset Glitch + download manager + settings + recommendations overhaul

- Sunset Glitch color palette applied to all templates
- Font Awesome icons throughout UI
- Download manager with parallel queue and progress tracking
- Settings page with dynamic configuration
- Recommendations router enhanced with scoring
- Local vendor libs (Alpine.js, HTMX) for offline support
- Auto test suite with screenshots
- Series releases list component
- New download model

templates/index.html

@@ -99,25 +99,11 @@
 
     <hr style="border: none; border-top: 1px solid #2a2d32; margin: 40px 0;">
 
-    <!-- Recommendations Section - Series only -->
-    <div class="section-header">
-        <h2>Recommande pour vous</h2>
-        <button class="btn btn-secondary btn-small" 
-                hx-get="/api/recommendations?content_type=series&html=1" 
-                hx-target="#seriesRecommendationsList">
-            <svg fill="none" stroke="currentColor" viewBox="0 0 24 24" style="width:14px;height:14px;">
-                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"></path>
-            </svg>
-            Actualiser
-        </button>
-    </div>
-    <div id="seriesRecommendationsList" class="recommendations-carousel" style="margin-bottom: 40px;" hx-get="/api/recommendations?content_type=series&html=1" hx-trigger="load delay:600ms"></div>
-
     <!-- Latest Releases Section - Series only -->
-    <div class="section-header" style="margin-top: 40px;">
+    <div class="section-header">
         <h2>Dernieres sorties Series TV</h2>
         <button class="btn btn-secondary btn-small" 
-                hx-get="/api/releases/latest?content_type=series&html=1" 
+                hx-get="/api/series/latest?html=1" 
                 hx-target="#seriesReleasesList">
             <svg fill="none" stroke="currentColor" viewBox="0 0 24 24" style="width:14px;height:14px;">
                 <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"></path>
@@ -125,7 +111,7 @@
             Actualiser
         </button>
     </div>
-    <div id="seriesReleasesList" class="releases-carousel" hx-get="/api/releases/latest?content_type=series&html=1" hx-trigger="load delay:700ms"></div>
+    <div id="seriesReleasesList" class="releases-carousel" hx-get="/api/series/latest?html=1" hx-trigger="load delay:700ms"></div>
 </div>
 
 <div id="tab-watchlist" class="tab-content" x-show="activeTab === 'watchlist'">