fix(web): wrap toFeedEvent callback to fix TS2345 type error

TypeScript strict mode rejects passing toFeedEvent directly to .map()
because PumpEvent (a union of interfaces without index signatures)
is not assignable to the inferred callback parameter type with an
index signature. Wrapping with an arrow function avoids the strict
assignability check.

Author: nirholas

packages/web/src/pages/Dashboard.tsx

@@ -132,7 +132,7 @@ export function Dashboard() {
   // Use SSE events when connected and receiving data, otherwise mock
   const isLive = status === 'connected' && sseEvents.length > 0;
   const feedEvents: FeedEvent[] = isLive
-    ? sseEvents.map(toFeedEvent)
+    ? sseEvents.map((e, i) => toFeedEvent(e, i))
     : mockEvents;
 
   const filtered = filter === 'all' ? feedEvents : feedEvents.filter((e) => e.type === filter);