deployment fix

Dockerfile

@@ -8,18 +8,42 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
 
 WORKDIR /code
 
+# ---- Install system dependencies for OpenGL/EGL (required for pyrender) ----
+RUN apt-get update && apt-get install -y \
+    libgl1-mesa-glx \
+    libgl1-mesa-dri \
+    libglu1-mesa \
+    libegl1-mesa \
+    libgbm1 \
+    libxext6 \
+    libxrender1 \
+    libxfixes3 \
+    libxi6 \
+    libxrandr2 \
+    libxss1 \
+    libgtk-3-0 \
+    libgconf-2-4 \
+    xvfb \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set environment variables for headless OpenGL rendering
+ENV DISPLAY=:99
+ENV PYOPENGL_PLATFORM=egl
+
 # ---- Install Python deps --------------------------------------------------
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
-# No extra system packages required now that Redis and Celery are removed
-
 # ---- Copy project code ----------------------------------------------------
 COPY . .
 
 # ---- Create startup script ------------------------------------------------
 RUN echo '#!/bin/bash\n\
 set -e\n\
+# Start virtual framebuffer for headless OpenGL\n\
+Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &\n\
+# Wait a moment for Xvfb to start\n\
+sleep 2\n\
 # Launch FastAPI app\n\
 exec python main.py\n' > /code/start.sh && chmod +x /code/start.sh