feat: add synopsis to search results

- Increase anime metadata enrichment from top 5 to top 15 per provider
- Add Kitsu/MAL metadata enrichment to series search (was missing entirely)
- 15/28 series results now show synopsis/rating/genres

app/routers/router_anime.py

@@ -166,8 +166,8 @@ async def search_anime_unified(
                     item_dict["_relevance_boost"] = 0.5
                 results[pid].append(item_dict)
 
-                # Prepare enrichment task for top 5 results per provider
-                if len(results[pid]) <= 5:
+                # Prepare enrichment task for top 15 results per provider
+                if len(results[pid]) <= 15:
                     enrichment_tasks.append(
                         enricher.enrich_metadata(
                             item_dict.get("metadata", {}),
@@ -260,6 +260,11 @@ async def search_series_unified(
 
     search_results = await asyncio.gather(*search_tasks, return_exceptions=True)
 
+    # Enrich results with metadata (synopsis, rating, genres)
+    enricher = await get_metadata_enricher()
+    enrichment_tasks = []
+    enrichment_mapping = []
+
     for provider_id, result in zip(provider_ids, search_results):
         if isinstance(result, Exception):
             print(f"[SERIES SEARCH] {provider_id} error: {str(result)}")
@@ -267,9 +272,36 @@ async def search_series_unified(
         elif result:
             results[provider_id] = result
             print(f"[SERIES SEARCH] {provider_id}: Found {len(result)} results")
+            # Prepare enrichment for top 15 results
+            for idx, item in enumerate(result[:15]):
+                if isinstance(item, dict):
+                    enrichment_tasks.append(
+                        enricher.enrich_metadata(
+                            item.get("metadata", {}),
+                            item.get("title", ""),
+                            item.get("url", ""),
+                        )
+                    )
+                    enrichment_mapping.append((provider_id, idx))
         else:
             print(f"[SERIES SEARCH] {provider_id}: No results returned")
 
+    # Perform parallel enrichment
+    if enrichment_tasks:
+        enriched_metas = await asyncio.gather(*enrichment_tasks, return_exceptions=True)
+        for idx, (provider_id, pos) in enumerate(enrichment_mapping):
+            if idx < len(enriched_metas):
+                meta = enriched_metas[idx]
+                if (
+                    not isinstance(meta, Exception)
+                    and meta
+                    and provider_id in results
+                    and pos < len(results[provider_id])
+                ):
+                    results[provider_id][pos]["metadata"] = (
+                        meta.model_dump() if hasattr(meta, "model_dump") else meta
+                    )
+
     elapsed = time.time() - start_time
     total_found = sum(len(r) for r in results.values())
     print(