Files
pulse/docs
rcourtman 4e88ae110c Lead open History rows with the live reading of held alerts (#2638)
Builds on #2637 (alert card live reading), so this branch carries its
commits until that PR merges.

## Why

Alerts > History is a log of occurrences, but its open row is the one
occurrence still in progress: it shows an Active badge and a running
duration. Beside them, the breach message "Node temperature at 95.0°C"
reads as the reading now, while the node sits at 78°C under its 80°C
trigger and the alert is held until it clears. With #2637 the Alerts
card one tab away says "Temperature 78°C now, back under the 80°C alert
level", so the two pages disagreed about the same alert (the confusion
in #2068).

## What changes

- An active History row for a threshold alert with a usable live status
leads with the same presentation summary as the card
(`getMetricAlertPresentation`, via a new `getAlertHistoryRowCopy` in
`alertHistoryModel.ts`).
- Desktop: the clear rule and the last breach move into the message
cell's hover. Phone: they show as muted lines under the reading, since a
phone has no hover.
- The row's `description` stays the recorded message, so search ("95.0"
still finds the held row) and the Assistant handoff read the record.
- Closed rows, and open rows without a live status (non-threshold
alerts, Pulse system alerts, the moments after a restart), are
unchanged.
- The reading rechecks on the shared relative-time clock, read only for
open rows, so it turns stale ("Last reading: …, 12 mins ago") when
evaluations stop without re-rendering closed rows on each tick.

## Verification

- Private mock stack built from this tree with a local-only generator
overlay pinning pve2's CPU temperature: walked 95 → 78 → 72 °C at
1440×900 and 390×844, light and dark; earlier pass also covered
breaching, °F, and the alert resolving out of the list.
- New tests: model copy and fallbacks (`alertHistoryModel.test.ts`), the
phone card (`AlertHistoryMobileList.test.tsx`), and the desktop row
following a live store update and turning stale on the clock
(`AlertHistoryTableAlertRow.test.tsx`).
- Receipt: `frontend-modern/browser-verification/9c0e53268f0d014f.json`.

Refs #2068
2026-10-07 14:17:06 +01:00
..
2026-10-05 21:53:41 +01:00
2026-10-05 21:53:41 +01:00
2026-10-05 21:53:41 +01:00

Pulse documentation

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