Add GitHub Actions workflow for automated testing

.gitea/workflows/test.yaml

@@ -0,0 +1,16 @@
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Run tests
+        run: |
+          chmod +x ./run-tests.sh
+          ./run-tests.sh