Fill the Stopwatch domain to 100% coverage (Stopwatch.tsx + stopwatch.ts,
both now 100% stmts/branch/funcs/lines) and add the reconcile lifecycle test.
New tests cover: idle display-tap start (and no-op without a handling),
pair-count stepper floor + free-typed entry (non-positive ignored), clearing
the handling via the empty option, stop/discard onSuccess reset, discard
arm-window expiry, clearing a pending discard timer on reconcile and on
unmount, and the reconcile lifecycle — running locally, then a poll without
the local session resets the timer and shows the admin-stopped notice.
No behaviour changes. Five defensive/unreachable guards in Stopwatch.tsx are
annotated /* c8 ignore next -- <reason> */ (comment-only): the
paused_seconds ?? 0 coalesce (contract types it non-null) and the early-return
guards in handleSelectZool/handleStart/handleStop/handleDiscard (each triggered
by a control disabled or unrendered in that state).
No bugs found.
a30441b2a2