feat: add GitHub Actions workflow for automated testing and build process

Author: muniter

.github/workflows/test.yml

@@ -0,0 +1,32 @@
+name: Tests
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Use Node.js 22
+      uses: actions/setup-node@v4
+      with:
+        node-version: '22'
+        cache: 'npm'
+    
+    - name: Install dependencies
+      run: npm ci
+    
+    - name: Run type checking
+      run: npm run lint
+    
+    - name: Run tests
+      run: npm test
+    
+    - name: Build project
+      run: npm run build