Fix whisper auto bug

app/worker.py

@@ -9,6 +9,7 @@ TRN = Path(os.getenv("TRANSCRIPT_ROOT", "/transcripts"))
 TMP = Path(os.getenv("TMP_ROOT", "/tmpdl"))
 MODEL_NAME = os.getenv("WHISPER_MODEL","large-v3")
 COMPUTE = os.getenv("WHISPER_PRECISION","int8")
+WHISPER_LANGUAGE = os.getenv("WHISPER_LANGUAGE", "auto").strip()
 
 OWUI_URL = os.getenv("OPENWEBUI_URL", "").rstrip("/")
 OWUI_KEY = os.getenv("OPENWEBUI_API_KEY", "")
@@ -78,7 +79,8 @@ def yt_dlp(url, outdir):
 
 def transcribe(media_path: Path):
     model = get_model()
-    segments, info = model.transcribe(str(media_path), vad_filter=True, language="auto")
+    lang = None if WHISPER_LANGUAGE.lower() == "auto" else WHISPER_LANGUAGE
+    segments, info = model.transcribe(str(media_path), vad_filter=True, language=lang)
     title = media_path.stem
     base = TRN / title
     segs, text_parts = [], []
@@ -231,8 +233,6 @@ def publish_to_openwebui(paths):
     except Exception as e:
         log({"status": "owui_error", "error": str(e)})
 
-from pathlib import Path
-
 def handle_local_file(path_str: str):
     """Transcribe & index a local media file that already exists in /library.
     Safe to call repeatedly; it skips if transcript JSON already exists.