Add first-class qualitative lab findings (positive / negative / borderline
serology) alongside the existing numeric path. A LabResult is now EITHER a
numeric reading (value + unit, optional reference bounds) OR a qualitative one
(valueText, e.g. "negativ"), never both, never neither.
- schema: make `value` nullable, add `value_text`; migration 0181 is additive
(DROP NOT NULL + ADD COLUMN), every existing numeric row is untouched.
- validation: numeric-XOR-qualitative refine on create + update; unit/bounds
apply to the numeric path only; valueText capped at 120 chars. The single
resource PUT rejects a cross-type edit.
- serialise: carry valueText through both DTOs; a qualitative row reports the
neutral `unknown` range verdict (no number to classify).
- FHIR: a qualitative result emits valueCodeableConcept — SNOMED qualifier
value for confidently-known terms (Negative 260385009, Positive 10828004,
Not detected 260415000, Detected 260373001), text-only for borderline /
grenzwertig and any unrecognised term. The raw text always rides .text.
- UI: a numeric/qualitative toggle in the lab form; list, history, detail,
chart, sparkline, and the doctor-report PDF all render qualitative readings
as their text and never plot or divide on a null value.
- i18n: new labs.form keys across all six locales.
- openapi: response carries a nullable value + valueText; regenerated.
Add a user-scoped Biomarker catalog so a marker is defined once — name,
unit, lower/upper bound, optional encrypted context, panel — and every
later reading just links it. New /api/biomarkers CRUD plus a structured
/api/labs create path: a biomarkerId resolves the unit + reference range
server-side, so the list and detail DTOs carry the resolved values and
the client never recomputes the range. Lab reads include the linked
marker and fall back to the legacy free-text fields for unlinked rows.
Add a lab-result restore endpoint for the delete-Undo affordance, a
shared serialiser, a static common-panel seed list, and tests for
catalog validation, structured-entry resolution, and the context codec.
Marc-André Bombeck