staff-dietary: add child form diet schema + consent gates

The child form (43854) had dietary questions enabled after the initial
build, with its own question IDs — the code wrongly assumed it reused the
staff form's IDs, so children surfaced no dietary info. Add a dedicated
CHILD_DIET schema (discovered from the live questions endpoint) and route
children to it.

Both the staff (43853) and child forms now also carry a kost-consent
question, so gate diet on consent for all three populations (staff 90431,
child 90437, leader-staff 90424), matching the existing leader-staff
behaviour — dietary info is hidden unless consent is given.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: scriptcoded

CLAUDE.md

@@ -57,9 +57,11 @@ Project API — **owns no data, has no database.**
   - `presence.ts` — staff/child period model: `presentDays = ⋃(selected-period
     days) − ⋃(absence days of checked periods)`; **child `91058` is positive**
     (attend-days, not absence); leader-staff fixed **25 Jul–1 Aug**.
-  - `diet.ts` — allergens/prefs unified by Swedish label across the two form
-    schemas; section gates; consent `90424` gates diet **only for leader-staff**
-    (staff/child forms have no consent question).
+  - `diet.ts` — allergens/prefs unified by Swedish label across **three** form
+    schemas (`STAFF_DIET` 43853, `CHILD_DIET` 43854, `PARTICIPANT_DIET` 43844 —
+    each has its own question IDs); section gates; consent gates diet for **all
+    three** populations — staff `90431`, child `90437`, leader-staff `90424`
+    (diet hidden unless consent is "1").
   - `core.ts` — server-only orchestration (`runStaffDietaryReport`): fetch →
     classify → dedupe → presence+diet → filter → aggregates. **Not** a server fn,
     so both `report.ts` and `export.ts` reuse it.

src/reports/staff-dietary/constants.ts

@@ -201,7 +201,11 @@ export interface DietSchema {
 	consent?: string;
 }
 
-/** Staff form 43853 — also used by children (form 43854 reuses these IDs). */
+/**
+ * Staff form 43853. Children answer a *different* form (43854) with its own IDs
+ * — see CHILD_DIET; do not reuse this schema for them. Consent (90431) gates
+ * diet, same as the child and leader-staff forms.
+ */
 export const STAFF_DIET: DietSchema = {
 	allergens: {
 		"88271": "Fisk",
@@ -229,7 +233,43 @@ export const STAFF_DIET: DietSchema = {
 	allergenGate: "88258",
 	preferenceGate: "89331",
 	freeText: "88286",
-	// No consent question on the staff/child forms.
+	consent: "90431",
+};
+
+/**
+ * Child form 43854 — its own dietary question IDs, distinct from the staff
+ * form. Dietary info was enabled on this form after the initial build, so these
+ * were discovered from the live form def (questions endpoint, form_id=43854).
+ * The consent question (90437) gates diet, mirroring the leader-staff form.
+ */
+export const CHILD_DIET: DietSchema = {
+	allergens: {
+		"88331": "Fisk",
+		"88264": "Ägg",
+		"88262": "Laktos",
+		"88261": "Mjölkprotein",
+		"88288": "Soja",
+		"88313": "Blötdjur",
+		"88338": "Gluten",
+		"88330": "Kräftdjur",
+		"89346": "Nötter",
+		"89347": "Sesam",
+		"89348": "Selleri",
+		"89349": "Senap",
+		"89350": "Sulfit",
+	},
+	preferences: {
+		"89351": "Äter ej nötkött",
+		"89352": "Äter ej fläskkött",
+		"89353": "Halal",
+		"89354": "Vegan",
+		"89355": "Lakto-ovo-vegetarian",
+		"89356": "Pescetarian",
+	},
+	allergenGate: "88267",
+	preferenceGate: "89345",
+	freeText: "88270",
+	consent: "90437",
 };
 
 /** Participants form 43844 — used by leader-staff. */

src/reports/staff-dietary/diet.ts

@@ -1,4 +1,9 @@
-import { type DietSchema, PARTICIPANT_DIET, STAFF_DIET } from "./constants";
+import {
+	CHILD_DIET,
+	type DietSchema,
+	PARTICIPANT_DIET,
+	STAFF_DIET,
+} from "./constants";
 import type { ClassifiedPerson } from "./populations";
 import { asBool, asText, type QuestionMap } from "./values";
 
@@ -13,9 +18,16 @@ export interface DietInfo {
 	other: string;
 }
 
-/** staff + child answer the staff form; leader-staff answer the participant form. */
+/** Each population answers its own form: staff 43853, child 43854, leader 43844. */
 function schemaFor(person: ClassifiedPerson): DietSchema {
-	return person.population === "leader-staff" ? PARTICIPANT_DIET : STAFF_DIET;
+	switch (person.population) {
+		case "leader-staff":
+			return PARTICIPANT_DIET;
+		case "child":
+			return CHILD_DIET;
+		default:
+			return STAFF_DIET;
+	}
 }
 
 export function computeDiet(person: ClassifiedPerson): DietInfo {