Add a section-chrome module (chrome.ts) and a log decorator
(log-render.ts) that give the CLI a coherent visual hierarchy beneath
the SHANNON splash, all drawn from the existing sunset ramp:
- splash.ts now sources the ramp from chrome.ts (one definition)
- start's launch info gets a solid-yellow rule under each section
label, with aligned Label: values greyed
- streaming scan logs (logs, and start --follow) get one per-phase
gutter bar that walks the ramp, dimmed timestamps, red on [ERROR],
and the end-of-run summary framed in a corner panel
Named chrome.ts to avoid the existing ui.ts (spinner/step helpers).
Presentation only: the worker and workflow.log are untouched, the log
on disk stays plain text (tail/grep and the failure marker keep
working), and non-TTY / NO_COLOR output is byte-identical to before.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
