fix: remove stale masonry play-overlay override and dead source tag branch

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/static/style.css

@@ -1349,20 +1349,6 @@ header {
   z-index: 2;
 }
 
-/* Play overlay for videos */
-.masonry-item .play-overlay {
-  position: absolute;
-  inset: 0;
-  display: grid;
-  place-items: center;
-  color: white;
-  font-size: 3rem;
-  text-shadow: 0 2px 8px rgba(0,0,0,0.8);
-  z-index: 1;
-  pointer-events: none;
-  opacity: 0.9;
-}
-
 /* Loading state for shuffle */
 .masonry-container.loading {
   opacity: 0.5;

app/templates/_gallery_item.html

@@ -26,8 +26,6 @@
             🎭 {{ t.name.split(':', 1)[1] if ':' in t.name else t.name }}
           {% elif t.kind == 'rating' %}
             ⚠️ {{ t.name.split(':', 1)[1] if ':' in t.name else t.name }}
-          {% elif t.kind == 'source' %}
-            🌐 {{ t.name.split(':', 1)[1] if ':' in t.name else t.name }}
           {% elif t.kind == 'post' %}
             📌 {{ t.name.split(':', 1)[1] if ':' in t.name else t.name }}
           {% else %}