Adds /api/v1/mini account (settings, profile, change-password), wallet (balance
+ ledger, Paystack top-up) and support (Afia chat) endpoints. Account/profile/
password/top-up proxy to the central identity API via a CallsIdentityApi trait;
notifications, wallet balance and support chat are served locally.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
