feat: apply rel-001 feedback cleanup

tests/test_app.py

@@ -18,6 +18,31 @@ def test_healthcheck() -> None:
     assert body["service"] == "portfolio-hub"
     assert "version" in body
     assert "checked_at" in body
+    assert "db_enabled" in body
+    assert isinstance(body["db_enabled"], bool)
+
+
+def test_health_exposes_db_enabled_true(monkeypatch) -> None:
+    """REQ-035 AC-1: PORTFOLIOHUB_DB_ENABLED=true → db_enabled: true."""
+    monkeypatch.setenv("PORTFOLIOHUB_DB_ENABLED", "true")
+    monkeypatch.setenv("CREDENTIAL_ENCRYPTION_KEY", "test-key-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=")
+    get_settings.cache_clear()
+    client = TestClient(create_app())
+    response = client.get("/health")
+    get_settings.cache_clear()
+    assert response.status_code == 200
+    assert response.json()["db_enabled"] is True
+
+
+def test_health_exposes_db_enabled_false(monkeypatch) -> None:
+    """REQ-035 AC-2: PORTFOLIOHUB_DB_ENABLED=false → db_enabled: false."""
+    monkeypatch.setenv("PORTFOLIOHUB_DB_ENABLED", "false")
+    get_settings.cache_clear()
+    client = TestClient(create_app())
+    response = client.get("/health")
+    get_settings.cache_clear()
+    assert response.status_code == 200
+    assert response.json()["db_enabled"] is False
 
 
 def test_docs_are_exposed() -> None: