Tag each phase (research, web search, page fetch, review, rejection,
report writing) with a distinct emoji so the spinner line shows what's
happening at a glance. Search/fetch tool calls now update the active
spinner's message directly via a small shared handle, since they run
as plain tool functions without one threaded down to them otherwise.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
