ดาวน์โหลด codeg 0.14.4

- feat(delegation): View sub-agent conversations in a read-only side panel — works on both live and reloaded conversations.
- feat(delegation): Multi-agent collaboration is now opt-in — enable it in Settings to use delegate_to_agent.
- perf(workspace): Faster external change detection — overhead now scales with the number of changed files instead of the number of open tabs.
- fix(workspace): Switching between file tabs no longer flashes a loading state or risks clobbering unsaved edits.
- fix(workspace): External edits to background file tabs are detected and reloaded automatically.
- fix(workspace): Externally deleted files now show an explicit error instead of silently displaying stale content.
- fix(workspace): Eliminated races where the watcher could overwrite unsaved edits or paint stale diff markers.
- fix(workspace): Resolved git lock contention between the file watcher and AI agents — thanks to @Kwensiu (#215).
- fix(workspace): Opening a conversation from the sidebar now releases the maximized file pane overlay.
- fix(export): Desktop conversation export now uses the system Save As dialog and surfaces real save errors.
- fix(delegation): Sub-agent errors (auth required, refusal, token limits) now appear in the delegate_to_agent result instead of a generic "canceled".
- fix(delegation): Fixed parent-side hang when a sub-agent connection errors out.
- refactor(conversation): Moved the "Reload" entry below "Export" in the conversation context menu.