* feat(db): observer adverts on a partial index once observations carry their payload type
* fix(db): keep today's adverts statement unguarded and rate-limit the gate's read warning
* feat(background): batched, resumable payload-type backfill for untyped observations
* fix(background): cap each payload-type backfill statement at 50,000 rows
* fix(db): reject a non-positive backfill row cap
* perf(db): probe rollups per hour and IATA for region-sized stats lists
* fix(db): keep the stats probes inside each rollup table's hour range
* test(db): push the far-future until to year 9999 so a missing path-stats end bound times out
* perf(db): row-comparison trace cursor and a since-only telemetry statement
* test(db): pin the empty trace cursor tag and run the trace pagination tests in CI
* test(planguard): stats, adverts, traces and telemetry statements leave pending; diff cases
* test(planguard): window-bounded advert roles, short quiet page, per-observer telemetry cursors
Hourly activity read raw rows only 3h back, so a longer rollup backlog left
hours drawn as zero. The raw tail now starts at the newest complete rollup
hour, capped at the 24h raw holdback, and the response reports rolledUntil
and rawFrom so clients can show anything still uncovered.
Stats endpoints read hourly rollup tables filled once per closed hour by one
advisory-locked task, instead of materialized views that re-scanned every
observation on each refresh. IATA-set tables give exact distinct counts for any
IATA set or region. Cleanup holds raw rows for unrolled hours (up to 24h).
Adds /stats/series; ingest keeps packet observation counts, observer last IATA,
channel message counts and trace tag summaries. 001_baseline.sql is rewritten,
so pre-release 2.0 databases must be recreated. See docs/historical-stats.md.
MrAlders0n