fix: add tests that check some of the issues are already fixed (#905)

* Add tests that check some of the issues are already fixed

* Fix test formatting

server/tests/test_app.py

@@ -0,0 +1,17 @@
+"""Tests for app-level endpoints (root, not under /v1)."""
+
+import pytest
+
+
+@pytest.mark.asyncio
+async def test_health_endpoint_returns_healthy():
+    """GET /health returns 200 and {"status": "healthy"} for probes and CI."""
+    from httpx import AsyncClient
+
+    from reflector.app import app
+
+    # Health is at app root, not under /v1
+    async with AsyncClient(app=app, base_url="http://test") as root_client:
+        response = await root_client.get("/health")
+    assert response.status_code == 200
+    assert response.json() == {"status": "healthy"}