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Marc-André Bombeck
84683f4ce9
Cap and page the unbounded reads that let a multi-year tenant pull its whole measurement history into memory on hot paths. - extractFeatures: read newest-first with a 6000-row cap (mirrors the Coach snapshot) and reverse to ascending, so a 365-400 day window no longer materialises hundreds of thousands of PULSE / glucose rows per Coach turn and nightly briefing. Full-history extremes still come from readAllTimeExtremes, so the cap never relabels an extreme. - Add a (userId, measuredAt) index on measurements (migration 0210) for the type-less range scans that extractFeatures and the consolidation passes drive; the existing (userId, type, measuredAt) cannot serve them as a prefix. - runConsolidation: keyset-paginate the per-(user, type) source scan on (measuredAt, id) instead of one unbounded findMany, removing the giant single result-set allocation that drove the boot storm. Output is identical; covered by a paging unit test. - Stagger the boot-time backfill enqueues with increasing startAfter offsets so the heavy full-history loads no longer all drain in parallel onto one tenant at startup. Non-boot callers keep their immediate send. - Backups: replace load-all-then-stringify with paged narrow-select reads for the weekly and off-host writers, bounding transient heap. Off-host still includes soft-deleted rows. Covered by a serialize/restore round-trip test. - Drop the per-request auth.bearer.success audit insert; the wide event already records auth_method and user_id, so the polling client no longer drives a write + pool checkout on every request. Failure-path audit stays. - Coach conversation detail: cap the message include to the newest 200 so a long thread no longer decrypts every message on each open; response shape unchanged. - Admin audit-log: floor the scan at the retention horizon so the listing and its count stop sweeping open-ended over the substring filters.