Kuru UX overhaul
- ›Mobile card layout for the market tape (no more 68rem horizontal scroll)
- ›Unified freshness traffic-light pill across book, orders, trades
- ›Quick-filter chips for top counterparties — one-tap focus
- ›Side (Buy/Sell/Both) and sort (New/$/Size) controls on the tape
- ›Notional-weighted tape hierarchy — whale fills bolder, dust dimmer
- ›Inline depth bars showing our resting size vs market liquidity
- ›Book panel footer with count and size of remaining levels
- ›Actionable empty states (widen range, reset filters)
- ›Sticky condensed summary while scrolling
- ›Overall style and spacing rework for better visual hierarchy