feat: add containerized FastAPI health check

tests/test_health.py

@@ -0,0 +1,19 @@
+from fastapi.testclient import TestClient
+
+from app.main import app
+
+client = TestClient(app)
+
+
+def test_health_returns_healthy() -> None:
+    response = client.get("/health")
+
+    assert response.status_code == 200
+    assert response.json() == {"status": "healthy"}
+
+
+def test_root_identifies_application() -> None:
+    response = client.get("/")
+
+    assert response.status_code == 200
+    assert response.json() == {"name": "Media Ingest", "status": "running"}