Slice 1: intent.Hub records one start/end per GET /api/v1/wait request and answers
Presence(customer, now): connected (hold open, or one started < 333 s = 243 s cadence + 90 s
grace ago), not connected since T, or unknown (hub up < 333 s; in memory only). The host page
shows "Box connection". One DEBUG line per presence change.
Slice 2 (operator ruling D2, 2026-10-08, 09 §3 decision 186): a host that is online by its report
clock but whose box has had no wait-channel connection for >= 360 s may be deleted at once after
the tick "I checked: the box is off". Presence is re-read at POST time; the tick alone, unknown
presence, a connected box or a shorter gap keep today's 409. The delete logs the operator channel
and saves one host_deleted_box_off event. RESET and the customer-delete cascade are unchanged.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS
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