* fix(editor): contain TipTap render crashes and dedupe split-pane reloads
Addresses issue #826 (renderer blackouts under split-pane external reload):
- Wrap RichMarkdownEditor in an error boundary to contain ProseMirror
transaction crashes to the affected pane.
- Swallow setContent/normalizeSoftBreaks exceptions so they can't escape
to the React root.
- Debounce ORCA_EDITOR_EXTERNAL_FILE_CHANGE_EVENT dispatch per
(worktreeId, relativePath) to coalesce atomic-write bursts.
- Deduplicate concurrent fs/git IPC reads across split panes so a single
external change doesn't fan out into N identical round-trips.
* test(cli): stabilize stale bootstrap pid check
Jinwoo Hong
Jinjing