Bugs: clear compare params on tab change, recover channel live messages after a 429,
observer copy link keeps only region params, route table no longer navigates on region
change with nothing selected, map borders memo on data identity, live overview can't
resurrect a failed query, French relative times, no language write on first visit,
0/0 node locations hidden outside the map, path/signal stats use the shared retry rule.
i18n: node/packet/mesh/observer strings that were still hardcoded after #62.
Cleanup: formatUtc, ACTION_BUTTON_CLASS, observer-stats, useWindowedStats, observer-id;
observer pages use StatCard/Card/Field/Segmented/SearchBar/SelectDropdown; one details
chrome on the stats tabs; comment and translations-guide trims; localStorage stub for
Node 26 in the test setup.
Airtime telemetry is on-air seconds, so chart it as a percent of elapsed time.
Add channel busy, packets heard, SNR heard and payload type charts from the
new per-observer activity endpoint; hidden until the server has it.
useLiveOverview keyed its setQueryData on the whole RegionFilter object
while the overview query keys on the regionKey string, so every WS bump
silently missed the cache and the counters only moved on the 60s
refetch. Also drop pending counts when the region changes so old-region
increments don't bleed into the new KPIs.
MrAlders0n