Update Dockerfile

Dockerfile

@@ -1,27 +1,39 @@
-# Use a slim Python base image
-FROM python:3.10-slim
-
-# Create a non-root user (UID 1000) to match Spaces runtime
-RUN useradd -m -u 1000 user
-
-# Switch to the non-root user
-USER user
-ENV HOME=/home/user \
-    PATH=/home/user/.local/bin:$PATH
-
-# Set the working directory to the user's home
-WORKDIR /home/user/app
-
-# Copy and install Python dependencies
-COPY --chown=user requirements.txt ./
-RUN pip install --upgrade pip && \
-    pip install --no-cache-dir -r requirements.txt
-
-# Copy the rest of the application code
-COPY --chown=user . ./
-
-# Expose the port defined in README.md (app_port: 7860)
-EXPOSE 7860
-
-# Launch the Gradio app on 0.0.0.0 so it's reachable externally
-CMD ["python", "app.py", "--server_port", "7860", "--server_name", "0.0.0.0"]
+# Use a slim Python base image
+FROM python:3.10-slim
+
+# Create a non-root user (UID 1000) to match Spaces runtime
+RUN useradd -m -u 1000 user
+
+# Set environment vars for the non-root user
+ENV HOME=/home/user \
+    PATH=/home/user/.local/bin:$PATH
+
+# Set working directory
+WORKDIR /home/user/app
+
+# Copy only requirements first (for layer caching)
+COPY --chown=user requirements.txt ./
+
+# Switch to root to install system build dependencies
+USER root
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends \
+      build-essential \
+      cmake \
+      python3-dev \
+      libffi-dev \
+ && rm -rf /var/lib/apt/lists/*
+
+# Switch back to non-root user for pip install
+USER user
+RUN pip install --upgrade pip \
+ && pip install --no-cache-dir -r requirements.txt
+
+# Copy the rest of your application code
+COPY --chown=user . ./
+
+# Expose the port your app runs on
+EXPOSE 7860
+
+# Launch the Gradio app on 0.0.0.0 so it's reachable externally
+CMD ["python", "app.py", "--server_port", "7860", "--server_name", "0.0.0.0"]