Add initial GitHub Actions CI workflow

- Simple CI workflow for testing runner infrastructure
- Tests Docker functionality and NVIDIA CUDA image access
- Uses CUDA 13.0.2 base image with Ubuntu 24.04
- Supports manual dispatch and runs on push/PR to main

Signed-off-by: cdunning <cdunning@nvidia.com>

Author: camille-004

.github/workflows/ci.yml

@@ -0,0 +1,31 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+
+jobs:
+  test:
+    name: Test Environment
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      
+    - name: Test Docker
+      run: |
+        docker --version
+        docker run --rm hello-world
+        
+    - name: Test CUDA Image
+      run: |
+        docker pull nvidia/cuda:13.0.2-base-ubuntu24.04
+        docker run --rm nvidia/cuda:13.0.2-base-ubuntu24.04 bash -c "
+          echo 'CUDA container test successful'
+          cat /etc/os-release
+          which nvcc || echo 'nvcc not in PATH'
+        "