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.
Region-filtered /scopes and /stats/scopes now list manual scopes configured
for the region and imported scopes whose MeshMapper catalogue includes the
IATA, instead of inferring membership from observed traffic. Filtered
/scopes returns string[] like the unfiltered call.
Manual scopes now require a region in config.
MrAlders0n