chore(webapp): clarify emergency span cap scope in server-changes note

Author: ericallam

.server-changes/trace-page-payload-diet.md

@@ -3,4 +3,4 @@ area: webapp
 type: improvement
 ---
 
-Shrinks the run trace page loader payload by keeping raw span events server-side and makes large trace trees render more efficiently. Also adds an optional `TRACE_VIEW_EMERGENCY_SPAN_CAP` env var that clamps trace summary span limits on both event store paths.
+Shrinks the run trace page loader payload by keeping raw span events server-side and makes large trace trees render more efficiently. Also adds an optional `TRACE_VIEW_EMERGENCY_SPAN_CAP` env var that clamps trace summary and detailed summary span limits on both event store paths.