feat: translate synopses to French and show full text

- Add MyMemory translation API to MetadataEnricher (free, no key)
- Translate English synopses to French after Kitsu enrichment
- Remove synopsis truncation (was 200 chars, now shows full text)
- Increase CSS line-clamp from 2 to 4 lines

templates/components/anime_search_results.html

@@ -49,7 +49,7 @@
                     </div>
 
                     {% if group.synopsis %}
-                        <p class="sr-synopsis">{{ group.synopsis[:200] }}{% if group.synopsis | length > 200 %}...{% endif %}</p>
+                        <p class="sr-synopsis">{{ group.synopsis }}</p>
                     {% endif %}
 
                     {% if group.genres %}
@@ -125,7 +125,7 @@
 .sr-top { display: flex; align-items: baseline; gap: 12px; }
 .sr-title { font-size: 1.1rem; font-weight: 700; margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
 .sr-rating { flex-shrink: 0; font-size: 0.8rem; font-weight: 700; color: #ffcc00; }
-.sr-synopsis { font-size: 0.85rem; color: var(--text-dim); margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
+.sr-synopsis { font-size: 0.85rem; color: var(--text-dim); margin: 0; display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
 .sr-tags { display: flex; flex-wrap: wrap; gap: 4px; margin: 0; }
 .sr-tag { font-size: 0.65rem; font-weight: 600; padding: 2px 8px; border-radius: 4px; background: rgba(255,255,255,0.06); color: var(--text-dim); }
 .sr-providers { display: flex; flex-wrap: wrap; gap: 6px; }