Add X11 forwarding support to Docker

Users can now run the full GUI from Docker:
  xhost +local:docker
  docker run --rm -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix development-hub

Or with docker-compose:
  docker compose up gui

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Dockerfile

@@ -1,19 +1,20 @@
-# Development Hub Ecosystem - Docker Build for Testing
+# Development Hub Ecosystem - Docker Build
 #
-# Tests that all ecosystem projects can be installed together.
-# GUI functionality is not tested (no X11), only imports and CLI tools.
+# Run the full GUI from Docker with X11 forwarding.
 #
 # Build:   docker build -t development-hub .
-# Test:    docker run --rm development-hub
+# Run GUI: docker run --rm -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix development-hub
+# Test:    docker run --rm development-hub /test.sh
 
 FROM python:3.12-slim
 
-# Install system dependencies for Qt (even though we won't run GUI, imports need libs)
+# Install system dependencies for Qt GUI
 RUN apt-get update && apt-get install -y --no-install-recommends \
     git \
     libgl1 \
     libegl1 \
     libxkbcommon0 \
+    libxkbcommon-x11-0 \
     libdbus-1-3 \
     libxcb-cursor0 \
     libxcb-icccm4 \
@@ -24,12 +25,12 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libxcb-render0 \
     libxcb-render-util0 \
     libxcb-image0 \
+    libxcb-xkb1 \
     libglib2.0-0 \
+    libfontconfig1 \
+    libfreetype6 \
     && rm -rf /var/lib/apt/lists/*
 
-# Set up virtual display for Qt imports (no actual display, just for import)
-ENV QT_QPA_PLATFORM=offscreen
-
 WORKDIR /workspace
 
 # Clone all repos
@@ -72,4 +73,5 @@ echo ""\n\
 echo "All tests passed!"\n\
 ' > /test.sh && chmod +x /test.sh
 
-CMD ["/test.sh"]
+# Default: run the GUI (use /test.sh for testing)
+CMD ["development-hub"]

docker-compose.yml

@@ -1,23 +1,27 @@
 # Development Ecosystem Docker Compose
 #
-# Builds and tests the complete ecosystem installation.
-#
 # Usage:
-#   docker compose build   # Build the test image
-#   docker compose up      # Run installation tests
-#   docker compose down    # Cleanup
+#   docker compose build        # Build the image
+#   docker compose up gui       # Run the GUI (requires X11)
+#   docker compose up test      # Run installation tests
+#
+# Before running GUI, allow Docker access to X11:
+#   xhost +local:docker
 
 services:
-  ecosystem-test:
+  gui:
+    build: .
+    container_name: development-hub-gui
+    environment:
+      - DISPLAY=${DISPLAY}
+    volumes:
+      - /tmp/.X11-unix:/tmp/.X11-unix
+      - ~/.config:/root/.config  # Persist settings
+    network_mode: host  # Needed for some X11 setups
+
+  test:
     build: .
     container_name: development-hub-test
     environment:
       - QT_QPA_PLATFORM=offscreen
-      - DISPLAY=:99
-    # For local development testing, mount the local repos:
-    # volumes:
-    #   - ./:/workspace/development-hub:ro
-    #   - ../CmdForge:/workspace/CmdForge:ro
-    #   - ../ramble:/workspace/ramble:ro
-    #   - ../artifact-editor:/workspace/artifact-editor:ro
-    #   - ../orchestrated-discussions:/workspace/orchestrated-discussions:ro
+    command: /test.sh