* Re-architected model-pricing page into modular components: * PricingPage / PricingSidebar / PricingContent * Removed obsolete `ModelPricing*` components and column defs * Introduced reusable `SelectableButtonGroup` in `common/ui` * Supports Row/Col grid (3 per row) * Optional collapsible mode with gradient mask & toggle * Rebuilt filter panels with the new button-group: * Model categories, token groups, and quota types * Added dynamic `tagCount` badges to display item totals * Extended `useModelPricingData` hook * Added `filterGroup` and `filterQuotaType` state and logic * Updated PricingTable columns & sidebar reset logic to respect new states * Ensured backward compatibility via re-export in `index.jsx` * Polished styling, icons and i18n keys
