Fix typo

app.py

@@ -90,7 +90,7 @@ async def load_models():
     cache = Path("model_cache"); cache.mkdir(exist_ok=True)
     # in startup (Transformer Whisper processing)
     processor = WhisperProcessor.from_pretrained(ASR_MODEL_ID, cache_dir=cache)
-    model      = WhisperForConditionalGeneration.from_pretrained(ASR_MODEL_ID, cache_dir=cache_path)
+    model      = WhisperForConditionalGeneration.from_pretrained(ASR_MODEL_ID, cache_dir=cache)
     # Force English transcription – never translate
     forced = processor.get_decoder_prompt_ids(language="english", task="transcribe")
     model.config.forced_decoder_ids = forced