Row click no longer navigates to /exchanges/:app/:route/:id which was
changing the search scope. Instead, Dashboard calls onExchangeSelect
callback and ExchangesPage manages the selected exchange as local state.
The search criteria and scope are preserved when selecting an exchange.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Sidebar wrapper gets height:100% to fill window
- Route-scoped Exchanges uses same Dashboard table (not compact ExchangeList)
- 50:50 grid split: table on left, diagram on right when route selected
- ContentTabs gets border-bottom and surface background for visibility
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>