Add OpenGL/Qt dependencies to Dockerfiles

Add libgl1, libegl1, libxkbcommon0, libdbus-1-3 for PySide6 GUI support.

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Dockerfile.ready

@@ -39,10 +39,14 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     # For providers that need browser auth
     firefox \
     xdg-utils \
-    # X11 for display forwarding
+    # X11 and OpenGL for Qt/PySide6
     libx11-6 \
     libxext6 \
     libxrender1 \
+    libgl1 \
+    libegl1 \
+    libxkbcommon0 \
+    libdbus-1-3 \
     && rm -rf /var/lib/apt/lists/*
 
 # Create a non-root user