Fix port to 7860 and assign HF user

Dockerfile

@@ -1,11 +1,18 @@
 FROM python:3.13
 
+# Create a non-root user specifically for Hugging Face Spaces (UID 1000)
+RUN useradd -m -u 1000 user
+
 WORKDIR /code
 
 COPY ./requirements.txt /code/requirements.txt
 
 RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
-COPY . .
+# Switch to the non-root user
+USER user
+
+# Copy the rest of the app with correct ownership
+COPY --chown=user . /code
 
-CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "8888"]
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]