drop the "● harness alive — turn loop running" paragraph; the
new #alive-badge chip in the state row carries the same signal
across all statuses (loading / online / needs-login / offline)
with colour coding. token-usage chip renamed + restyled as
#ctx-badge — primary number is total context-window tokens
used, mirroring claude code's "N tokens" indicator.
every state-row badge now has hover detail: state-badge gets
per-state tooltips + age suffix, model-chip explains the
/model command, last-turn shows the raw ms duration, ctx-badge
breaks out input / cache_read / cache_write / output.
new todo entry for the per-turn stats sink (start/end/model/
tokens/tool-call-count) the harness should be writing.