Remove Three.js test environment setup steps

Removed setup steps for Three.js test environment and related environment variables.

Signed-off-by: James Pether Sörling <pethers@users.noreply.github.com>

Author: pethers

.github/workflows/copilot-setup-steps.yml

@@ -14,7 +14,6 @@ on:
 env:
   GITHUB_TOKEN: ${{ secrets.COPILOT_MCP_GITHUB_PERSONAL_ACCESS_TOKEN }}
   GITHUB_PERSONAL_ACCESS_TOKEN: ${{ secrets.COPILOT_MCP_GITHUB_PERSONAL_ACCESS_TOKEN }}
-  DISPLAY: ":99"
 
 jobs:
   # The job MUST be called `copilot-setup-steps` or it will not be picked up by Copilot.
@@ -42,44 +41,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
-      # Setup complete Three.js test environment
-      - name: Setup Three.js Test Environment (Chrome + Xvfb + Dependencies)
-        run: |
-          echo "🔧 Setting up complete Three.js test environment..."
-          # Install system dependencies for Three.js rendering
-          sudo apt-get update
-          sudo apt-get install -y --no-install-recommends \
-            xvfb dbus-x11 x11-utils \
-            libgtk2.0-0 libgtk-3-0 libgbm-dev libgbm1 \
-            libnotify-dev libnss3 libxss1 \
-            libxtst6 xauth \
-            graphviz ffmpeg \
-            fonts-noto fonts-noto-cjk fonts-noto-cjk-extra \
-            ca-certificates fonts-liberation \
-            libatk-bridge2.0-0 libatk1.0-0 libcups2 \
-            libdbus-1-3 libdrm2 libnspr4 \
-            libx11-xcb1 libxcomposite1 libxdamage1 \
-            libxfixes3 libxrandr2 libxrender1 \
-            libxshmfence1 xdg-utils wget libxkbcommon0 xkb-data
-          # Install Google Chrome Stable for Three.js WebGL support
-          wget -qO- https://dl.google.com/linux/linux_signing_key.pub | sudo gpg --dearmor -o /usr/share/keyrings/google-chrome.gpg
-          echo "deb [arch=amd64 signed-by=/usr/share/keyrings/google-chrome.gpg] http://dl.google.com/linux/chrome/deb/ stable main" | sudo tee /etc/apt/sources.list.d/google-chrome.list
-          sudo apt-get update
-          sudo apt-get install -y google-chrome-stable
-
-          # Setup D-Bus for Chrome
-          sudo mkdir -p /var/run/dbus
-          sudo dbus-daemon --system --fork || true
-                    
-          # Verify Chrome installation
-          google-chrome --version
-          echo "✅ Three.js test environment setup complete"
-        env:
-          DISPLAY: ":99"
-          XKB_DEFAULT_RULES: evdev
-          XKB_DEFAULT_MODEL: pc105
-          XKB_DEFAULT_LAYOUT: us
-
       # JavaScript/TypeScript setup
       - name: Setup Node.js
         uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
@@ -134,43 +95,4 @@ jobs:
       - name: Install Playwright browsers (and OS deps)
         run: npx playwright install --with-deps
         env:
-          DISPLAY: ":99"
           PLAYWRIGHT_BROWSERS_PATH: "0"
-        
-      - name: Verify Cypress for Three.js Testing
-        run: |
-          npx cypress verify
-          npx cypress info
-          echo "✅ Cypress verified and ready for Three.js tests"
-
-      - name: Display environment info
-        run: |
-          echo "========================================="
-          echo "Environment Setup Complete"
-          echo "========================================="
-          echo "Node version: $(node --version)"
-          echo "npm version: $(npm --version)"
-          echo "TypeScript version: $(npx tsc --version)"
-          echo "Cypress version: $(npx cypress version)"
-          echo "Chrome version: $(google-chrome --version)"
-          echo "Display: $DISPLAY"
-          echo "Xvfb running: $(pgrep -x Xvfb >/dev/null && echo 'Yes' || echo 'No')"
-          echo "D-Bus running: $(pgrep -x dbus-daemon >/dev/null && echo 'Yes' || echo 'No')"
-          echo "Working directory: $(pwd)"
-          echo "Build artifacts: $(ls -la dist/ 2>/dev/null | wc -l) files"
-          echo "========================================="
-          echo "MCP Servers Available:"
-          echo "- GitHub MCP Server: HTTP (https://api.githubcopilot.com/mcp/insiders)"
-          echo "- mcp-server-filesystem: $(which mcp-server-filesystem 2>/dev/null || echo 'not found')"
-          echo "- mcp-server-memory: $(which mcp-server-memory 2>/dev/null || echo 'not found')"
-          echo "- mcp-server-sequential-thinking: $(which mcp-server-sequential-thinking 2>/dev/null || echo 'not found')"
-          echo "- Playwright MCP: @playwright/mcp (via npx)"
-          echo "========================================="
-          echo "Three.js Test Environment Ready"
-          echo "- WebGL rendering: SwiftShader (software)"
-          echo "- Target FPS: 30-60fps"
-          echo "- Memory limit: 4GB Node.js heap"
-          echo "=========================================="
-        env:
-          DISPLAY: ":99"
-