Fix cache permissions error

Dockerfile

@@ -1,10 +1,14 @@
-
 # Use the official Python 3.9 slim image
 FROM python:3.9-slim
 
 # Set the working directory inside the container
 WORKDIR /code
 
+# Create a directory for the model cache and set the HF_HOME environment variable.
+# This tells the transformers library to download models here instead of the root .cache folder.
+RUN mkdir /code/cache
+ENV HF_HOME /code/cache
+
 # Copy the requirements file into the container
 COPY ./requirements.txt /code/requirements.txt
 
@@ -17,4 +21,4 @@ COPY ./main.py /code/main.py
 # Command to run the FastAPI server with Uvicorn
 # We use --host 0.0.0.0 to make it accessible from outside the container
 # and --port 7860 as this is the standard port Hugging Face Spaces expects
-CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]