chore(terminal): drop CommandDetect verification logging
The detector's [live]/[immediate]/[skip]/[done] log lines served
their purpose during the title-pattern shakeout and would just be
noise for everyone else. Removes the dedicated logger, the log-only
local variables (durationMs / parked / candidate / surface tags /
elapsedMs / iconSummary), and the `iconLogTag` helper. The two icon
appliers now return Void; `noteCommandFinishedForCommandDetection`
no longer needs the surrounding tabId lookup.