Get part notes

{  "notes": [    {      "id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",      "part_id": "28c660ae-a12c-4da7-9243-03385b104cf1",      "content": "Ordered replacements from supplier.",      "created_by": "string",      "created_at": "2026-04-20T10:15:00Z",      "updated_at": "2026-04-20T10:15:00Z"    }  ]}

{  "statusCode": 400,  "code": "FST_ERR_VALIDATION",  "error": "Bad Request",  "message": "body/end_date Required"}

{  "statusCode": 403,  "code": "7",  "error": "Forbidden",  "message": "[permission_denied] site_id does not belong to this workspace"}

{  "statusCode": 404,  "code": "5",  "error": "Not Found",  "message": "[not_found] agent not found"}