i18n(rekommendationer): localisera 💡-raden + meal-box-text (12 språk)

- 💡 why-texten: what-to-eat skickar nu användarens languageTag till motorn;
  scoring använder buildWhy(..., ctx.languageTag) i stället för hårdkodat buildWhySv.
  WHY_TEMPLATES har redan alla 12 språk – felet var bara att sv-SE var fast.
  Default sv-SE = oförändrat beteende (säkert). (Rest: utgår-ingrediensens NAMN
  i meningen är fortf. svenskt – motorn har bara svenska namn; noterat.)
- meal-box-förslagens text: whySv-sträng -> useByUrgent-flagga + mealbox.eatBy/ready
  i alla 12 språk (klienten renderar via t()).

Co-Authored-By: Claude <noreply@anthropic.com>

apps/api/src/routes/recommendations.ts

@@ -433,6 +433,7 @@ export async function recommendationRoutes(app: FastifyInstance) {
       cravingCuisine: craving?.cuisine,
       cravingMaxKcal: craving?.maxKcal,
       personalizationEnabled,
+      languageTag: localePrefs.languageTag,
       memoryItems: personalizationEnabled ? memoryItems : undefined,
       tasteSignals: personalizationEnabled ? tasteSignals : undefined,
       cookingAssumptions: personalizationEnabled ? cookingAssumptions : undefined,
@@ -583,20 +584,14 @@ export async function recommendationRoutes(app: FastifyInstance) {
       titleSv: box.titleSv,
       portionsRemaining: box.portionsRemaining,
       recommendedUseBy: box.recommendedUseBy,
-      whySv:
-        Date.parse(box.recommendedUseBy) <= today.getTime() + 2 * 86_400_000
-          ? `Matlådan bör ätas senast ${box.recommendedUseBy}. Noll matlagning, noll svinn.`
-          : "Färdig mat som väntar – snabbaste middagen i huset.",
+      useByUrgent: Date.parse(box.recommendedUseBy) <= today.getTime() + 2 * 86_400_000,
     }));
 
     // Betyg (stjärnor) finns på kandidaterna men följer INTE med i
     // ScoredRecommendation som rankAll returnerar. Återkoppla dem per recept så
     // mobilen kan visa "★ 4,5 · 12" i listan (annars syns aldrig satta betyg).
     const ratingByRecipe = new Map(
-      scoredCandidates.map((c) => [
-        c.recipeId,
-        { average: c.ratingAverage, count: c.ratingCount },
-      ]),
+      scoredCandidates.map((c) => [c.recipeId, { average: c.ratingAverage, count: c.ratingCount }]),
     );
 
     // "Menade du …?" – bara när en sökning gav noll träffar (grov felstavning).
@@ -614,9 +609,7 @@ export async function recommendationRoutes(app: FastifyInstance) {
     );
     const localizedById = await resolveIngredientNames(
       app.db,
-      allIngredients
-        .map((i) => i.canonicalIngredientId)
-        .filter((id): id is string => id != null),
+      allIngredients.map((i) => i.canonicalIngredientId).filter((id): id is string => id != null),
       languageTag,
     );
     const svToLocalized = new Map<string, string>();

apps/mobile/src/app/(tabs)/index.tsx

@@ -43,7 +43,7 @@ interface MealBoxSuggestion {
   titleSv: string;
   portionsRemaining: number;
   recommendedUseBy: string;
-  whySv: string;
+  useByUrgent: boolean;
 }
 interface WhatToEatResponse {
   recommendations: Recommendation[];
@@ -227,7 +227,11 @@ export default function WhatToEatScreen() {
                         tone="success"
                       />
                     </Row>
-                    <Small>{box.whySv}</Small>
+                    <Small>
+                      {t(box.useByUrgent ? "mealbox.eatBy" : "mealbox.ready", {
+                        date: box.recommendedUseBy,
+                      })}
+                    </Small>
                   </Card>
                 ))}
                 <Spacer size={spacing.sm} />

apps/mobile/src/locales/da/common.json

@@ -51,6 +51,8 @@
   "common.add": "Tilføj",
   "common.back": "Tilbage",
   "common.cancel": "Annuller",
+  "mealbox.eatBy": "Spis denne madkasse senest den {date}. Nul madlavning, nul spild.",
+  "mealbox.ready": "Færdig mad der venter – husets hurtigste aftensmad.",
   "common.remove": "Fjern",
   "common.all": "Alle",
   "auth.tagline": "Mindre spild, mindre stress, mere tilbage i pungen",

apps/mobile/src/locales/de/common.json

@@ -51,6 +51,8 @@
   "common.add": "Hinzufügen",
   "common.back": "Zurück",
   "common.cancel": "Abbrechen",
+  "mealbox.eatBy": "Iss diese Meal-Box spätestens am {date}. Kein Kochen, keine Verschwendung.",
+  "mealbox.ready": "Fertiges Essen wartet – das schnellste Abendessen im Haus.",
   "common.remove": "Entfernen",
   "common.all": "Alle",
   "auth.tagline": "Weniger Verschwendung, weniger Stress, mehr im Geldbeutel",

apps/mobile/src/locales/en/common.json

@@ -51,6 +51,8 @@
   "common.add": "Add",
   "common.back": "Back",
   "common.cancel": "Cancel",
+  "mealbox.eatBy": "Eat this meal box by {date} at the latest. Zero cooking, zero waste.",
+  "mealbox.ready": "Ready-made food waiting – the fastest dinner in the house.",
   "common.remove": "Remove",
   "common.all": "All",
   "auth.tagline": "Less waste, less stress, more left in your wallet",

apps/mobile/src/locales/es/common.json

@@ -51,6 +51,8 @@
   "common.add": "Añadir",
   "common.back": "Atrás",
   "common.cancel": "Cancelar",
+  "mealbox.eatBy": "Cómete esta tarrina como muy tarde el {date}. Cero cocina, cero desperdicio.",
+  "mealbox.ready": "Comida lista esperando: la cena más rápida de casa.",
   "common.remove": "Eliminar",
   "common.all": "Todos",
   "auth.tagline": "Menos desperdicio, menos estrés, más dinero en el bolsillo",

apps/mobile/src/locales/fi/common.json

@@ -51,6 +51,8 @@
   "common.add": "Lisää",
   "common.back": "Takaisin",
   "common.cancel": "Peruuta",
+  "mealbox.eatBy": "Syö tämä ateriarasia viimeistään {date}. Ei ruoanlaittoa, ei hävikkiä.",
+  "mealbox.ready": "Valmista ruokaa odottamassa – talon nopein illallinen.",
   "common.remove": "Poista",
   "common.all": "Kaikki",
   "auth.tagline": "Vähemmän hävikkiä, vähemmän stressiä, enemmän jää lompakkoon",

apps/mobile/src/locales/fr/common.json

@@ -51,6 +51,8 @@
   "common.add": "Ajouter",
   "common.back": "Retour",
   "common.cancel": "Annuler",
+  "mealbox.eatBy": "À manger avant le {date}. Zéro cuisine, zéro gaspillage.",
+  "mealbox.ready": "Un plat tout prêt qui attend – le dîner le plus rapide de la maison.",
   "common.remove": "Supprimer",
   "common.all": "Tous",
   "auth.tagline": "Moins de gaspillage, moins de stress, plus d'argent dans votre portefeuille",

apps/mobile/src/locales/it/common.json

@@ -51,6 +51,8 @@
   "common.add": "Aggiungi",
   "common.back": "Indietro",
   "common.cancel": "Annulla",
+  "mealbox.eatBy": "Consuma questo pasto entro il {date}. Zero cucina, zero sprechi.",
+  "mealbox.ready": "Cibo pronto in attesa: la cena più veloce di casa.",
   "common.remove": "Rimuovi",
   "common.all": "Tutti",
   "auth.tagline": "Meno sprechi, meno stress, più soldi in tasca",

apps/mobile/src/locales/nb/common.json

@@ -51,6 +51,8 @@
   "common.add": "Legg til",
   "common.back": "Tilbake",
   "common.cancel": "Avbryt",
+  "mealbox.eatBy": "Spis denne matboksen innen {date}. Null matlaging, null svinn.",
+  "mealbox.ready": "Ferdig mat som venter – husets raskeste middag.",
   "common.remove": "Fjern",
   "common.all": "Alle",
   "auth.tagline": "Mindre svinn, mindre stress, mer igjen i lommeboka",

apps/mobile/src/locales/nl/common.json

@@ -51,6 +51,8 @@
   "common.add": "Toevoegen",
   "common.back": "Terug",
   "common.cancel": "Annuleren",
+  "mealbox.eatBy": "Eet deze maaltijdbox uiterlijk op {date}. Geen kookwerk, geen verspilling.",
+  "mealbox.ready": "Kant-en-klaar eten dat wacht – het snelste avondeten in huis.",
   "common.remove": "Verwijderen",
   "common.all": "Alle",
   "auth.tagline": "Minder verspilling, minder stress, meer over in je portemonnee",

apps/mobile/src/locales/pl/common.json

@@ -51,6 +51,8 @@
   "common.add": "Dodaj",
   "common.back": "Wstecz",
   "common.cancel": "Anuluj",
+  "mealbox.eatBy": "Zjedz ten pojemnik najpóźniej {date}. Zero gotowania, zero marnowania.",
+  "mealbox.ready": "Gotowe jedzenie czeka – najszybsza kolacja w domu.",
   "common.remove": "Usuń",
   "common.all": "Wszystkie",
   "auth.tagline": "Mniej marnowania, mniej stresu, więcej w portfelu",

apps/mobile/src/locales/pt/common.json

@@ -51,6 +51,8 @@
   "common.add": "Adicionar",
   "common.back": "Voltar",
   "common.cancel": "Cancelar",
+  "mealbox.eatBy": "Come esta refeição até {date}, o mais tardar. Zero cozinha, zero desperdício.",
+  "mealbox.ready": "Comida pronta à espera – o jantar mais rápido cá de casa.",
   "common.remove": "Remover",
   "common.all": "Todos",
   "auth.tagline": "Menos desperdício, menos stress, mais dinheiro na carteira",

apps/mobile/src/locales/sv/common.json

@@ -51,6 +51,8 @@
   "common.add": "Lägg till",
   "common.back": "Tillbaka",
   "common.cancel": "Avbryt",
+  "mealbox.eatBy": "Matlådan bör ätas senast {date}. Noll matlagning, noll svinn.",
+  "mealbox.ready": "Färdig mat som väntar – snabbaste middagen i huset.",
   "common.remove": "Ta bort",
   "common.all": "Alla",
   "auth.tagline": "Mindre svinn, mindre stress, mer kvar i plånboken",

packages/recommendation-engine/src/scoring.ts

@@ -8,7 +8,7 @@ import type {
   ScoringWeights,
 } from "./types.js";
 import { DEFAULT_WEIGHTS } from "./types.js";
-import { buildWhySv } from "./explain.js";
+import { buildWhy } from "./explain.js";
 
 /**
  * Poängsätt en kandidat (0–100-skala per delkomponent, viktad summa).
@@ -111,7 +111,8 @@ export function scoreCandidate(
   // 16. Måltids-lämplighet: nedvikta lätta övergångsrätter (frukost/dessert) vid huvudmåltid.
   const mainMeal = ctx.mealType === "dinner" || ctx.mealType === "lunch";
   const crossover =
-    (candidate.mealTypes ?? []).includes("breakfast") || (candidate.mealTypes ?? []).includes("dessert");
+    (candidate.mealTypes ?? []).includes("breakfast") ||
+    (candidate.mealTypes ?? []).includes("dessert");
   parts.mealFit = mainMeal && crossover ? 0.15 : 1;
 
   // 17. Diet-affinitet (spec §diet): mjuk rankning mot matvanan. Aldrig ett hårt
@@ -125,7 +126,7 @@ export function scoreCandidate(
     titleSv: candidate.titleSv,
     score: Math.round(score * 10) / 10,
     parts,
-    whySv: buildWhySv(candidate, ctx, parts, provenance),
+    whySv: buildWhy(candidate, ctx, parts, provenance, ctx.languageTag ?? "sv-SE"),
     missingIngredients: candidate.coverage.missing
       .filter((m) => !m.optional)
       .map((m) => m.displayNameSv),

packages/recommendation-engine/src/types.ts

@@ -82,6 +82,8 @@ export interface RecommendationContext {
   cookingAssumptions?: CookingAssumption[];
   /** Hård grind: false = ignorera alla personliga signaler. */
   personalizationEnabled: boolean;
+  /** Användarens språk (BCP 47) för why-texten. Default sv-SE. */
+  languageTag?: string | undefined;
 }
 
 export interface ScoredRecommendation {