refactor: update billing calculations to use quota per unit

- Adjusted billing calculations in tests and core logic to incorporate a new QuotaPerUnit field.
- Modified estimated quota calculations to reflect changes in tiered billing logic.
- Updated related tests to ensure accuracy with the new quota calculations.
- Enhanced dynamic pricing components to align with updated billing expressions.

web/src/components/table/model-pricing/modal/components/DynamicPricingBreakdown.jsx

@@ -37,7 +37,7 @@ const { Text } = Typography;
 const PRICE_SUFFIX = '$/1M tokens';
 
 function unitCostToPrice(uc) {
-  return (Number(uc) || 0) * 2;
+  return Number(uc) || 0;
 }
 
 function formatPrice(uc) {

web/src/components/table/model-pricing/view/card/PricingCardView.jsx

@@ -269,7 +269,7 @@ const PricingCardView = ({
                       </h3>
                       <div className='flex flex-col gap-1 text-xs mt-1'>
                         {priceData.isDynamicPricing ? (
-                          formatDynamicPriceSummary(priceData.billingExpr, t)
+                          formatDynamicPriceSummary(priceData.billingExpr, t, priceData.usedGroupRatio)
                         ) : (
                           formatPriceInfo(priceData, t, siteDisplayType)
                         )}