🛠️ [TASK] : MVE2 enabler: get user account info from backend

[mike-mcnulty]

Summary

get user account info from backend

Description

As a user, I want to get details about the account related to a role0 or staking key

Use cases:
#1134
#1136
#1138

GIVEN user keychain (ie role0 public key) GET

• Wallet Details
  • ADA Balance
  • Staking Key
• Registration Details
  • Latest Registrations
  • Registration History
  • Registration Errors

The same data should also be queryable using the staking key, and would return all the same info, in addition to the role0 key.

Authorization: N/a - read access only on data that is publicly available elsewhere

All data should be returned in a single response, so the UI can parse and display whatever data is needed in a particular context.