WelcomeBanner

Kick off background fetch for LangSmith project URL.

Update the displayed thread ID and re-render the banner.

Render the ready banner footer after a successful connect.

The status bar owns visible connection progress; this just refreshes the banner's tool counts and ready footer once the server is reachable.

Render the regular banner footer during a reconnect.

The status bar owns visible connection progress. This method only ensures the banner is no longer in the idle failure state.

Transition to a neutral state with no footer.

Used after a fatal startup failure so the banner stops claiming progress (the failure is communicated via the chat surface). The banner keeps its identity rows (title, version, install path, LangSmith project, thread ID) but appends no footer line, leaving the chat error as the sole source of failure context.

Open style-embedded hyperlinks on single click.

Show a hand pointer over link spans and reset it elsewhere.

auto_links is disabled to avoid a hover-refresh flicker, so the pointer shape is updated manually from the style under the cursor.

Reset the pointer shape when the mouse leaves the banner.