Update Dockerfile

Dockerfile

@@ -8,13 +8,13 @@ RUN apt-get update && apt-get install -y \
 
 ENV MPLCONFIGDIR=/tmp/matplotlib
 
+# Create static and heatmap directories
+RUN mkdir -p /app/static/heatmap
+
 COPY requirements.txt .
 RUN pip install --upgrade pip && \
     pip install --no-cache-dir -r requirements.txt
 
 COPY . .
 
-RUN mkdir -p /app/static
-
-# Change the port here too
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]