feat: add Zone-Telechargement provider and automatic TLD verification

- Implemented DomainManager in app/utils.py for TLD rotation and caching.
- Created ZoneTelechargementDownloader in app/downloaders/series_sites/zonetelechargement.py.
- Integrated Zone-Telechargement into series search and provider list.
- Updated .gitignore to exclude domain_cache.json.

app/routers/router_anime.py

@@ -18,6 +18,7 @@ from app.downloaders import (
     AnimeUltimeDownloader,
     NekoSamaDownloader,
     VostfreeDownloader,
+    ZoneTelechargementDownloader,
     get_downloader,
 )
 from app.models import DownloadRequest
@@ -186,12 +187,15 @@ async def search_series_unified(
     Returns HTML for HTMX requests or if html=True parameter is set.
     """
     import asyncio
-    from app.downloaders.series_sites import FS7Downloader
+    from app.downloaders.series_sites import FS7Downloader, ZoneTelechargementDownloader
 
     print(f"\n[SERIES SEARCH] Starting search for '{q}' in {lang}. html={html}")
     start_time = time.time()
     results = {}
-    series_downloaders = {"fs7": FS7Downloader()}
+    series_downloaders = {
+        "fs7": FS7Downloader(),
+        "zonetelechargement": ZoneTelechargementDownloader()
+    }
     search_tasks = []
     provider_ids = []