fix(web-probe): wait observer refresh hydration (#680)

Co-authored-by: Codex <codex@noreply.local>

scripts/src/hwlab-node-help.ts

@@ -86,7 +86,7 @@ export function hwlabNodeWebProbeHelp(): Record<string, unknown> {
     actions: {
       run: "Run the repo-owned scripts/web-live-dom-probe.mjs helper.",
       script: "Run caller-provided Playwright JS after CLI-managed /auth/login; the script receives authenticated browser/context/page plus gotoStable/reloadStable/gotoCurrentStable/safeReload/fetchJson/safeFetchJson/fetchApiMatrix/recordStep/collectText/safeEvaluate/waitWorkbenchReady/screenshotOnError/summarizeWorkspace/summarizeConversation helpers and must not handle secrets itself.",
-      observe: "Start, inspect, control, stop, collect, and analyze a pure-client long-running Workbench observer on the target host. The observer has one Playwright page authority, receives commands through stateDir/commands files, writes JSONL artifacts, and does not expose any inbound service API.",
+      observe: "Start, inspect, control, stop, collect, and analyze a pure-client long-running Workbench observer on the target host. The observer runs a control page plus a passive observer page in a shared-auth browser context, receives commands through stateDir/commands files, writes JSONL artifacts, and does not expose any inbound service API.",
     },
     notes: [
       "Prefer --script-file for reusable probes; stdin heredocs remain supported for one-off probes.",