Update Dockerfile

Dockerfile

@@ -20,9 +20,9 @@ COPY requirements.txt .
 # Install Python dependencies
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Create a directory for numba cache
-RUN mkdir -p /root/.cache/numba
-RUN chmod -R 777 /root/.cache/numba
+# Create a writable directory for numba cache
+RUN mkdir -p /tmp/numba_cache
+ENV NUMBA_CACHE_DIR=/tmp/numba_cache
 
 # Copy the application code into the container
 COPY app.py .