* Add typing hot path timing diagnostics
* Add stress workspace debug menu item
* Restore stress workspace preload debug path
* Reduce typing lag from sidebar re-evaluation and hitTest overhead
hitTest: gate divider/sidebar/drag routing to pointer events only,
avoiding two full view-tree walks per non-pointer event.
forceRefresh: replace per-keystroke ISO8601DateFormatter + FileHandle
I/O with dlog() in DEBUG builds.
TabItemView: replace @EnvironmentObject subscriptions with plain refs
and precomputed parameters, add Equatable conformance to skip body
re-evaluation when parent rebuilds with unchanged values. @self changed
re-evaluations dropped from 668 to 1 during rapid typing.
* Add typing-latency guardrail comments and CLAUDE.md pitfalls
Strategic comments on hitTest, TabItemView, and forceRefresh to prevent
future regressions. Adds typing-latency-sensitive paths to CLAUDE.md
pitfalls section so agents know the constraints before editing.
* Add workspace palette actions and fix release autosave typing guard
Add Move Up/Down/Top, Close Other/Above/Below, Mark Read/Unread to
Cmd+Shift+P command palette and a Workspace submenu in the menu bar.
Fix recordTypingActivity() being gated behind #if DEBUG, which prevented
release builds from honoring the typing quiet period in autosave.