Show wallet balance prominently in the mobile profile bottom sheet with refresh
on open; align session lifetime with the platform default.
Co-authored-by: Cursor <cursoragent@cursor.com>
Wallet balance peek rendered as a menu row directly under Billing, backed by
a /wallet/balance endpoint (BillingClient) and guarded by Route::has. Also
opens Afia via a direct window event for reliability.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>