Marc-André Bombeck 1262333acc feat(mental-health): add the WHO-5 and SCI screening instruments ...

Two new self-report instruments join the mental-wellbeing engine on the
existing PHQ-9 / GAD-7 infrastructure:

- WHO-5 Well-Being Index: 5 items on the 6-point 5..0 scale over the last
  two weeks; the reported total is raw-sum x 4 (0-100) per the official
  WHO scoring (WHO/UCN/MSD/MHE/2024.1, CC BY-NC-SA 3.0 IGO). A total of
  50 or below follows the WHO comment (below 50 = indication for further
  assessment).
- Sleep Condition Indicator: 8 DSM-5-aligned items, 0-4 each with
  item-specific anchors, total 0-32, higher = better sleep; a total of
  16 or below maps to the probable-insomnia range of the source
  publication (Espie et al., BMJ Open 2014;4:e004183, CC BY-NC,
  (c) Sleepio Limited).

The instrument registry generalises rather than forking: per-item answer
ceilings, option order/label schemes, recall-stem captions, a reported-
score multiplier, score direction (higher-is-better inverts the follow-up
threshold), per-instrument attribution lines, and the validated-item
locale set are now instrument properties. Scoring stays server-
authoritative; the create route validates the per-instrument answer
ceiling and projects the total onto a COMPUTED WHO5_SCORE / SCI_SCORE
measurement row (never client-attributable), which also auto-satisfies a
planned screening reminder. Migration 0226 adds the enum values
(additive, idempotent). OpenAPI regenerated.

Neither instrument carries a self-harm item; the PHQ-9 item-9 crisis
routing is unchanged.

2026-07-05 20:33:29 +02:00

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