feat: align fee summary, special pricing and support chat with modular

Co-authored-by: Cursor <cursoragent@cursor.com>

src/utils/priceSocket.ts

@@ -9,6 +9,10 @@ import {
   priceStreamLifecycle,
   priceWssEnabled,
 } from '@/utils/priceSocketState'
+import {
+  applyBoardSpecialToLastPayload,
+  setSpecialPricingPayload,
+} from '@/utils/specialPricing'
 
 export {
   priceSocketConnected,
@@ -326,7 +330,7 @@ function handleLastPayload(payload: unknown) {
     return
   }
 
-  const last = payload as Price
+  const last = applyBoardSpecialToLastPayload(payload as Price)
   if (last.price_last == null && last.price == null && last.buy == null) {
     return
   }
@@ -413,6 +417,14 @@ function bindStreamEvents(source: EventSource) {
     }
   })
 
+  source.addEventListener('special-pricing', (event) => {
+    try {
+      setSpecialPricingPayload(JSON.parse(event.data))
+    } catch (error) {
+      console.warn('Special-pricing SSE parse failed', error)
+    }
+  })
+
   source.addEventListener('ping', () => {
     touchStreamActivity()
   })