Load only per-tab data for embed fragments, skip exchange capital fetches on tab switches, and harden calculator market imports/timeouts.
Co-authored-by: Cursor <cursoragent@cursor.com>
Market info fetch was rejected by instances because it sent the wrong bridge token header; align with hub monitor calls.
Co-authored-by: Cursor <cursoragent@cursor.com>
Load enabled instances from settings, fetch market info via /api/hub/market, and apply exchange-specific amount and price precision in trend and roll calculators.
Co-authored-by: Cursor <cursoragent@cursor.com>