feat(urocketmq): improve parameter validation and error messages

- service create/price: validate --storage-gb must be a positive multiple of 100
- service delete: catch error code 99539 with friendly message
- service get: simplify list return code
- token create/update: change permission values from Allow/Deny to ALL/NONE/PART
- token get: fix display flag logic when not specified
- testdata: update golden files accordingly