test: add health endpoint smoke test

Author: Nuu-maan

tests/test_health.py

@@ -0,0 +1,12 @@
+import pytest
+from httpx import AsyncClient
+
+from app.main import app
+
+
+@pytest.mark.asyncio
+async def test_health_endpoint():
+    async with AsyncClient(app=app, base_url="http://test") as ac:
+        resp = await ac.get("/health")
+    assert resp.status_code == 200
+    assert resp.json() == {"status": "ok"}