The validity-indicator debounce was two locals in the event
loop (indicator_pending + app.input_indicator) with no unit
coverage — ADR-0027's as-built notes flag it as untested async
glue. The decision logic is now an IndicatorDebounce struct:
note_event (a keystroke hides + arms; non-key events leave it
be), settle (the quiet window elapsed → show the verdict +
disarm), is_armed (drives the recv timeout), visible (mirrored
into app.input_indicator for the renderer).
No behaviour change — the tokio timer and terminal stay in the
loop. 7 unit tests cover the debounce contract: the keystroke /
settle cycle, clean verdicts, and that a background event
mid-typing does not cancel the owed recompute. 1125 passing,
clippy clean.
claude@clouddev1
c1c9f6cbc4