runRetention reclaimed only PRAGMA incremental_vacuum(5000) (~20MB) and
only when that hourly cycle deleted rows. On instances where an hourly
retention pass frees more than 5000 pages, the freelist grows net-positive
every cycle and the sqlite file bloats unboundedly (5GB+ of free pages over
~60MB of live data) even though row retention works. This is the documented
'50+ resources -> 5GB+' symptom the 5000-page batch was meant to fix.
Reclaim every cycle (so a pre-existing backlog drains even in a no-delete
hour) and size each reclaim to the current freelist, capped at 50000 pages
(~200MB) so a large backlog drains over several cycles without holding the
write lock for minutes. Skip the checkpoint when the freelist is empty so
steady-state WAL cadence is unchanged.
Surfaced by the demo server (pulse-relay): metrics.db had grown to 5.9GB
(5GB freelist), filling its 25GB disk and breaking the nightly backup.
Adds TestStoreRetentionReclaimsFreePages to the perf-and-scalability proof
set and documents the reclaim invariant in the subsystem contract.
Turn the discovery settings scan-scope choices into full-row controls so Custom subnets can be selected reliably from the dialog.
Add regression coverage for custom scope selection and common subnet chips.
Make network discovery observable from Connected systems with status, scope, candidate review, and settings actions.
Update the continuous-discovery follow-up and subsystem contracts to capture the visibility requirement.
Tighten v5-to-v6 upgrade safety, release installability, provider MSP mode handling, AI cost accounting, metrics flushing, and frontend guardrails for the v6.0.0 GA candidate.
Copy guest metadata at the store boundary so asynchronous monitor persistence cannot race with caller-owned metadata during release backend race tests.
Apply max alerts/hour to cooldown and critical re-notification paths so active alerts cannot bypass the UI delivery cap.
Persist LastNotified on active alert records when dispatching, including clone dispatches after reload.
Refs #1444
Extend the unified-agent RC rehearsal with an optional local v5-to-v6 process-swap check.
Record the v5.1.34 to v6.0.0-rc.6 proof result for the upgrade-continuity gate.
rcourtman