Added full suite of tests & added testing to CI/CD

backend/tests/test_main.py

@@ -0,0 +1,10 @@
+import pytest
+from fastapi.testclient import TestClient
+
+# No database needed for this simple test
+
+def test_health_check(client: TestClient):
+    """Test the health check endpoint."""
+    response = client.get("/api/health")
+    assert response.status_code == 200
+    assert response.json() == {"status": "ok"}