Batch stream deltas, window long transcripts, lazy-load syntax highlighting, and refine activity/composer interactions.
Add title refresh retries plus tests for streaming, windowing, code blocks, and live activity behavior.
Startup no longer triggers preloadMarkdownText (#3746). Restore the named
export so MessageBubble can still warm the lazy markdown chunk when the
reasoning panel opens (compatible with current main).
Co-authored-by: Cursor <cursoragent@cursor.com>
Remove the eager preloading of markdown/code-highlighting chunk at startup.
The markdown renderer will now only be loaded when actually needed to render content.
- Remove auto-selection of the most recent session on initial load,
so the app opens to a blank new-chat page instead of the last session.
- Preserve active session state when navigating to/from settings:
keep ThreadShell mounted (hidden via CSS) so scroll position, message
cache, and streaming state are not lost.
- Update onBackToChat to return to blank page when no session was active
instead of falling back to the most recent session.
- Update related test expectations to match the new navigation behavior.
When host is set to 0.0.0.0, the gateway now enforces that either token
or token_issue_secret must be configured — it refuses to start otherwise.
Bootstrap endpoint behavior:
- token_issue_secret configured: always validate regardless of source IP
(handles reverse-proxy scenarios where all connections appear as localhost)
- No secret: only localhost can bootstrap (local dev mode)
The frontend shows an authentication form when bootstrap returns 401/403,
persists the secret in localStorage, and retries automatically on reload.
Align the WebUI sidebar and chat chrome with the updated design, and generate WebUI session titles asynchronously without blocking turns.
Co-authored-by: Cursor <cursoragent@cursor.com>
