Fix: Move HF_HOME env var to Dockerfile for proper initialization

Dockerfile

@@ -2,6 +2,8 @@ FROM python:3.10-slim
 
 WORKDIR /app
 
+ENV HF_HOME=/app/.cache
+
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 

app.py

@@ -2,7 +2,6 @@ from transformers import AutoProcessor
 from optimum.onnxruntime import ORTModelForSpeechSeq2Seq
 import torch
 import os
-os.environ['HF_HOME'] = '/app/.cache'
 import base64
 import tempfile
 from fastapi import FastAPI, Request