Fix cache permissions using chmod

Dockerfile

@@ -1,13 +1,13 @@
-
 # 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 change its ownership to the non-root user.
-# The user is 'user' in the standard Hugging Face environment.
-RUN mkdir /code/cache && chown -R user:user /code/cache
+# Create a directory for the model cache and make it world-writable.
+# This ensures that the non-root user running the app can write to it,
+# without needing to know the user's name during the build.
+RUN mkdir /code/cache && chmod 777 /code/cache
 
 # Set the HF_HOME environment variable to point to our new cache directory.
 ENV HF_HOME /code/cache
@@ -19,8 +19,6 @@ RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 # Copy the application code
 COPY ./main.py /code/main.py
 
-# Switch to the non-root user before running the app
-USER user
-
-# Command to run the FastAPI server
-CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]
+# Command to run the FastAPI server.
+# The Hugging Face platform will run this command as a non-root user.
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]