Match Jellyfin punctuation variants using provider metadata and strict fallback

backend/app/clients/jellyfin.py

@@ -1,3 +1,4 @@
+import re
 from typing import Any, Dict, Optional
 import httpx
 import time
@@ -192,15 +193,27 @@ class JellyfinClient(ApiClient):
             "SearchTerm": term,
             "IncludeItemTypes": ",".join(item_types or []),
             "Recursive": "true",
-            "Fields": "Path,MediaSources",
+            "Fields": "Path,MediaSources,ProviderIds,OriginalTitle,SortName",
             "Limit": limit,
         }
         headers = self._emby_headers()
         try:
             async with httpx.AsyncClient(timeout=10.0) as client:
-                response = await client.get(url, headers=headers, params=params)
-                response.raise_for_status()
-                result = response.json()
+                normalized = ' '.join(re.sub(r"[^\w\s]", ' ', term, flags=re.UNICODE).split())
+                terms = list(dict.fromkeys([term, normalized]))
+                if normalized != term and normalized.split():
+                    terms.append(max(normalized.split(), key=len))
+                items = {}
+                for search_term in dict.fromkeys(terms):
+                    if not search_term:
+                        continue
+                    response = await client.get(url, headers=headers, params={**params, "SearchTerm": search_term})
+                    response.raise_for_status()
+                    payload = response.json()
+                    for item in payload.get('Items', []):
+                        if isinstance(item, dict) and item.get('Id'):
+                            items[item['Id']] = item
+                result = {'Items': list(items.values()), 'TotalRecordCount': len(items)}
             duration_ms = round((time.perf_counter() - started_at) * 1000, 2)
             finish_remote_call(
                 operation_event_id,