Add link verification workflow for pull requests

This commit introduces a new GitHub Actions workflow that verifies links in the application during pull requests. The workflow includes steps for checking out the repository, setting up Node.js and Python, installing dependencies, building the application, and running a link verification script against the application running locally.

Signed-off-by: Pete Cheslock <[email protected]>

Author: petecheslock

.github/workflows/link-verification.yml

@@ -0,0 +1,79 @@
+name: Link Verification on Pull Request
+
+on:
+  pull_request:
+    branches: [ main, master ]
+    types: [opened, synchronize, reopened]
+
+jobs:
+  link-verification:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+      with:
+          fetch-depth: 0
+      
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '18'
+        cache: 'npm'
+        
+    - name: Install dependencies
+      run: npm ci
+      
+    - name: Build the application
+      run: npm run build
+      
+    - name: Setup Python for link verifier
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.11'
+        
+    - name: Download and setup link verifier
+      run: |
+        curl -o requirements.txt https://raw.githubusercontent.com/jjasghar/link-verifier-llm-d.ai/9930050b977f00f78dbe8d361814f359115df492/requirements.txt
+        curl -o link_verifier.py https://raw.githubusercontent.com/jjasghar/link-verifier-llm-d.ai/9930050b977f00f78dbe8d361814f359115df492/link_verifier.py
+        pip install -r requirements.txt
+        
+    - name: Start the application in background
+      run: |
+        npm run start &
+        echo $! > server.pid
+        
+    - name: Wait for application to be ready
+      run: |
+        echo "Waiting for application to start on port 3000..."
+        timeout=60
+        counter=0
+        
+        while [ $counter -lt $timeout ]; do
+          if curl -f http://localhost:3000 >/dev/null 2>&1; then
+            echo "✅ Application is ready!"
+            break
+          fi
+          
+          echo "⏳ Waiting... ($counter/$timeout seconds)"
+          sleep 1
+          counter=$((counter + 1))
+        done
+        
+        if [ $counter -eq $timeout ]; then
+          echo "❌ Application failed to start within $timeout seconds"
+          exit 1
+        fi
+        
+    - name: Run link verification
+      run: python link_verifier.py --url http://localhost:3000
+        
+    - name: Cleanup
+      if: always()
+      run: |
+        if [ -f server.pid ]; then
+          kill $(cat server.pid) 2>/dev/null || true
+          rm -f server.pid
+        fi
+        # Kill any remaining node processes
+        pkill -f "docusaurus start" || true