Follow-up on 529e866 after review:
- SignalIndicator: offline now renders a diagonal slash (standard
"no signal" convention) instead of an X. Added a distinct amber "?"
state for devices that are online but whose firmware never reports rssi
at all (legacy v1 heartbeats predate the rssi/state/ok fields — see API
Reference's v2 migration notes) — previously this looked identical to
"not loaded yet". DeviceListCardView's online block now opts into this
by passing isOnline explicitly.
- Copy-to-clipboard for the serial number was invisible: the icon button
had opacity:0 as an inline style, which beats a CSS hover rule at equal
specificity, so the reveal-on-hover code paths never fired. Replaced
with a shared CopyableSerial component (components/shared/) where the
whole serial text is clickable, not just a trailing icon, and the icon
sits at partial opacity at rest instead of fully hidden. Wired into both
DeviceDetail's header and OverviewTab's hero Serial Number field.
- GeneralTab firmware hero: all stat columns are now equal-width via a
grid instead of ad-hoc flex gaps, and backup_version's "Unknown" sentinel
(the device's own placeholder when no second OTA slot has ever been
flashed) is no longer rendered as the literal string "vUnknown".
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
