Marc-André Bombeck ce2b745cc3 feat(measurements): add a bounded dense intra-day retention tier for HRV/HR ...

Daytime heart-rate-variability (SDNN) and heart-rate samples need to keep
their intra-day shape long enough for the stress engine to read them, but
the raw per-sample volume must stay bounded. Add a retention tier that
keeps the last 14 days of raw HRV/HR samples and folds everything older to
one daily-mean row via the proven mean-consolidation drain (same idempotent
stats:<HK>:<day> fold, soft-delete, and rollup recompute).

The two dense-tier types are deliberately EXEMPT from the destructive
daily-mean drain allowlist (HIGH_FREQUENCY_MEAN_TYPES) — that drain would
collapse the intra-day shape and soft-delete the raw rows. A regression test
pins both exclusions so a future edit that adds either type to the drain
allowlist fails loudly.

Migration 0108 adds only the partial index that keeps the retention drain's
discovery and per-user scan cheap; the retention bound lives in code so
tuning it never needs a migration.

2026-06-02 22:49:43 +02:00

..

migrations

feat(measurements): add a bounded dense intra-day retention tier for HRV/HR

2026-06-02 22:49:43 +02:00

schema.prisma

feat(measurements): add a bounded dense intra-day retention tier for HRV/HR

2026-06-02 22:49:43 +02:00