Adds a "Send anonymous telemetry" toggle in Settings that lets users
disable Sentry crash reporting and PostHog analytics. The setting is
frozen at launch so toggling mid-session shows a restart hint. The hint
correctly clears if the user toggles back to the launch-time value.
* Upgrade Sentry: tracing, breadcrumbs, dSYM upload
- Enhanced Sentry SDK init with performance tracing (10% sample),
explicit app hang timeout, stack trace attachment, and HTTP
failure capture
- Added breadcrumbs for key user actions: workspace switch/create/close,
split creation, command palette open/close, app focus — these give
context to hang/crash reports
- Added dSYM upload step to nightly and release CI workflows so hang
stacks are fully symbolicated (requires SENTRY_AUTH_TOKEN secret)
- Created SentryHelper.swift with lightweight breadcrumb helper
Closes https://github.com/manaflow-ai/cmux/issues/365
* Remove command palette breadcrumbs
Not useful for hang diagnosis — keep only workspace/tab/split/focus
breadcrumbs that correlate with heavy operations.
