Simplify config example and log API bodies

tests/test_memory_system_server.py

@@ -1,3 +1,8 @@
+import logging
+
+from fastapi.testclient import TestClient
+
+
 def test_memory_system_server_exposes_routes():
     from memory_system_api.server import app
 
@@ -60,3 +65,29 @@ def test_memory_system_messages_does_not_require_account_key_header():
     route = next(route for route in app.routes if getattr(route, "path", "") == "/memory-system/messages")
 
     assert all(getattr(dependency.call, "__name__", "") != "account_key_header" for dependency in route.dependant.dependencies)
+
+
+def test_memory_system_logs_request_and_response_bodies(caplog):
+    from memory_system_api.api import get_service
+    from memory_system_api.server import app
+
+    class FakeService:
+        async def create_user(self, user_id: str):
+            return {"status": "success", "account": {"user_id": user_id}}
+
+    app.dependency_overrides[get_service] = lambda: FakeService()
+
+    try:
+        with caplog.at_level(logging.INFO, logger="memory_system_api.requests"):
+            response = TestClient(app).post("/memory-system/users", json={"user_id": "userA"})
+    finally:
+        app.dependency_overrides.clear()
+
+    assert response.status_code == 200
+    assert response.json() == {"status": "success", "account": {"user_id": "userA"}}
+    assert any("request POST /memory-system/users body={\"user_id\":\"userA\"}" in record.message for record in caplog.records)
+    assert any(
+        "response POST /memory-system/users status=200 body={\"status\":\"success\",\"account\":{\"user_id\":\"userA\"}}"
+        in record.message
+        for record in caplog.records
+    )