fix(browser): land PR #24142 flush relay pending timers on stop

Flush pending extension request timers/rejections during relay shutdown and document in changelog.
Landed from contributor @kevinWangSheng (PR #24142).

Co-authored-by: Shawn <118158941+kevinWangSheng@users.noreply.github.com>

CHANGELOG.md

@@ -15,6 +15,7 @@ Docs: https://docs.openclaw.ai
 
 - Browser/Extension relay CORS: handle `/json*` `OPTIONS` preflight before auth checks, allow Chrome extension origins, and return extension-origin CORS headers on relay HTTP responses so extension token validation no longer fails cross-origin. Landed from contributor PR #23962 by @miloudbelarebia. (#23842)
 - Browser/Extension relay auth: allow `?token=` query-param auth on relay `/json*` endpoints (consistent with relay WebSocket auth) so curl/devtools-style `/json/version` and `/json/list` probes work without requiring custom headers. Landed from contributor PR #26015 by @Sid-Qin. (#25928)
+- Browser/Extension relay shutdown: flush pending extension-request timers/rejections during relay `stop()` before socket/server teardown so in-flight extension waits do not survive shutdown windows. Landed from contributor PR #24142 by @kevinWangSheng.
 - Auth/Auth profiles: normalize `auth-profiles.json` alias fields (`mode -> type`, `apiKey -> key`) before credential validation so entries copied from `openclaw.json` auth examples are no longer silently dropped. (#26950) thanks @byungsker.
 - Cron/Hooks isolated routing: preserve canonical `agent:*` session keys in isolated runs so already-qualified keys are not double-prefixed (for example `agent:main:main` no longer becomes `agent:main:agent:main:main`). Landed from contributor PR #27333 by @MaheshBhushan. (#27289, #27282)
 - iOS/Talk mode: stop injecting the voice directive hint into iOS Talk prompts and remove the Voice Directive Hint setting, reducing model bias toward tool-style TTS directives and keeping relay responses text-first by default. (#27543) thanks @ngutman.

src/browser/extension-relay.ts

@@ -820,6 +820,11 @@ export async function ensureChromeExtensionRelayServer(opts: {
     extensionConnected,
     stop: async () => {
       relayRuntimeByPort.delete(port);
+      for (const [, pending] of pendingExtension) {
+        clearTimeout(pending.timer);
+        pending.reject(new Error("server stopping"));
+      }
+      pendingExtension.clear();
       try {
         extensionWs?.close(1001, "server stopping");
       } catch {