fix(desktop): restore meeting auto-stop fallback

[ComputelessComputer]

Stop recordings when trigger apps disappear even if micStopped reports a helper process, while keeping active-trigger false positive protection.

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Note

Medium Risk
Changes live recording stop behavior on mic events; mistakes could stop sessions early or leave them running, but logic is guarded by mic snapshots and existing calendar prompts.

Overview
Meeting auto-stop now treats micStopped more reliably when the OS reports helper/PID processes instead of the real trigger app (e.g. Teams, browser-based meetings). A new getAutoStopCandidateAppIds path uses the full trigger list when the stopped app list doesn’t include the trigger bundle id, while still re-checking the mic snapshot so a still-active trigger isn’t stopped on unrelated stops.

Pending auto-stop timers track whether a mic snapshot is required; weaker helper-only events won’t downgrade a timer started from a direct trigger stop, and snapshot failures block stop only when that stricter path applies.

The browser bundle-id set is expanded and renamed (BROWSER_AUTO_STOP_APP_IDS) for calendar early-end prompts and primary stopped-app labeling. Tests cover regressions #5436 / helper behavior and parameterize early-end prompts across multiple browsers.

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