fix(skan+sok): robust kvitto-enheter, titel-/fuzzy-sok, hogtidsfilter

Kvitto-skanning (rapporterad krasch 'svar matchar inte schema … invalid value'):
- AI-skan-enheter (kvitto/kyl/maltid) normaliseras nu fore validering:
  'st'->COUNT, 'kg'->KILOGRAM, 'forp'/'pase'->PACKAGE osv. Okand enhet -> null
  i stallet for att falla hela svaret. Skarpt kvitto-prompt med exakt enhetslista.
  17 nya tester bevisar normaliseringen.

Sok pa 'Vad ska vi ata':
- Endast TITELN (inte beskrivningen) -> 'pannkaka' ger inte langre appelkompott
  (som bara namnde pannkakor i beskrivningen).
- Stavningstolerant via trigram-similarity: 'pankakor' hittar pannkakor.

Hogtidsknapparna (kraftskiva/grill/jul ...):
- Filtrerar nu pa recept-holidayTag (slug) i stallet for en titelsok som gav
  tomt. Har event inga recept an visas ett arligt tomt-lage.

Full typecheck gron, ai-contracts 24 tester grona.

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

@@ -47,7 +47,11 @@ interface MealBoxSuggestion {
 interface WhatToEatResponse {
   recommendations: Recommendation[];
   mealBoxSuggestions: MealBoxSuggestion[];
-  context: { activeHolidays: string[]; remainingKcal: number; remainingProteinG: number };
+  context: {
+    activeHolidays: Array<{ slug: string; name: string }>;
+    remainingKcal: number;
+    remainingProteinG: number;
+  };
 }
 
 // Kategori-flikar. Alla använder SAMMA rekommendations-motor (what-to-eat) så
@@ -79,6 +83,7 @@ export default function WhatToEatScreen() {
   const [submittedSearch, setSubmittedSearch] = useState("");
   const [page, setPage] = useState(0);
   const [cat, setCat] = useState<string | null>(null); // null = Rekommenderat
+  const [holiday, setHoliday] = useState<string | null>(null); // vald högtid (slug)
   const { track } = useAnalytics();
 
   const hour = new Date().getHours();
@@ -87,7 +92,7 @@ export default function WhatToEatScreen() {
   const activeCat = cat === null ? null : CATS.find((c) => c.key === cat);
 
   const query = useQuery({
-    queryKey: ["what-to-eat", cat, submittedSearch, currentMeal],
+    queryKey: ["what-to-eat", cat, holiday, submittedSearch, currentMeal],
     queryFn: () => {
       let path = "/v1/recommendations/what-to-eat?limit=20&view=default";
       if (activeCat?.tag) {
@@ -95,20 +100,33 @@ export default function WhatToEatScreen() {
       } else {
         path += `&mealType=${activeCat?.mealType ?? currentMeal}`;
       }
-      // Sök bland alla recept (titel/beskrivning) oavsett vald flik.
+      if (holiday) path += `&holiday=${encodeURIComponent(holiday)}`;
+      // Sök bland alla recept (på titel) oavsett vald flik/högtid.
       if (submittedSearch) path += `&search=${encodeURIComponent(submittedSearch)}`;
       return api<WhatToEatResponse>(path);
     },
     placeholderData: keepPreviousData,
   });
 
+  // Sök, flik och högtid är ömsesidigt uteslutande – ett aktivt filter i taget.
   const submitSearch = (value: string) => {
     setSearchText(value);
     setSubmittedSearch(value.trim());
+    setHoliday(null);
     setPage(0);
   };
   const selectCat = (value: string | null) => {
     setCat(value);
+    setHoliday(null);
+    setSearchText("");
+    setSubmittedSearch("");
+    setPage(0);
+  };
+  const selectHoliday = (slug: string) => {
+    setHoliday((cur) => (cur === slug ? null : slug)); // toggla av/på
+    setCat(null);
+    setSearchText("");
+    setSubmittedSearch("");
     setPage(0);
   };
 
@@ -155,9 +173,9 @@ export default function WhatToEatScreen() {
         <>
           <Spacer size={spacing.xs} />
           <Row style={{ flexWrap: "wrap" }}>
-            {query.data.context.activeHolidays.map((holiday) => (
-              <Pressable key={holiday} onPress={() => submitSearch(holiday)}>
-                <Tag label={`🎉 ${holiday}`} tone="accent" />
+            {query.data.context.activeHolidays.map((h) => (
+              <Pressable key={h.slug} onPress={() => selectHoliday(h.slug)}>
+                <Tag label={`🎉 ${h.name}`} tone={holiday === h.slug ? "success" : "accent"} />
               </Pressable>
             ))}
           </Row>
@@ -192,28 +210,37 @@ export default function WhatToEatScreen() {
 
       {query.data && (
         <>
-          {cat === null && !submittedSearch && query.data.mealBoxSuggestions.length > 0 && (
-            <>
-              <Heading>{t("wte.mealBoxFirst")}</Heading>
-              {query.data.mealBoxSuggestions.map((box) => (
-                <Card key={box.mealBoxId} onPress={() => router.push("/meal-boxes")}>
-                  <Row style={{ justifyContent: "space-between" }}>
-                    <Body>🍱 {box.titleSv}</Body>
-                    <Tag
-                      label={t("mealbox.portionsLeft", { count: box.portionsRemaining })}
-                      tone="success"
-                    />
-                  </Row>
-                  <Small>{box.whySv}</Small>
-                </Card>
-              ))}
-              <Spacer size={spacing.sm} />
-            </>
-          )}
+          {cat === null &&
+            !submittedSearch &&
+            !holiday &&
+            query.data.mealBoxSuggestions.length > 0 && (
+              <>
+                <Heading>{t("wte.mealBoxFirst")}</Heading>
+                {query.data.mealBoxSuggestions.map((box) => (
+                  <Card key={box.mealBoxId} onPress={() => router.push("/meal-boxes")}>
+                    <Row style={{ justifyContent: "space-between" }}>
+                      <Body>🍱 {box.titleSv}</Body>
+                      <Tag
+                        label={t("mealbox.portionsLeft", { count: box.portionsRemaining })}
+                        tone="success"
+                      />
+                    </Row>
+                    <Small>{box.whySv}</Small>
+                  </Card>
+                ))}
+                <Spacer size={spacing.sm} />
+              </>
+            )}
 
           {allRecs.length === 0 && (
             <EmptyState
-              text={submittedSearch ? "Inga recept matchar din sökning." : t("wte.empty")}
+              text={
+                submittedSearch
+                  ? "Inga recept matchar din sökning."
+                  : holiday
+                    ? "Inga recept för den här högtiden än."
+                    : t("wte.empty")
+              }
             />
           )}
 
@@ -221,7 +248,7 @@ export default function WhatToEatScreen() {
             <Card key={rec.recipeId} onPress={() => router.push(`/recipe/${rec.recipeId}`)}>
               <Row style={{ justifyContent: "space-between", alignItems: "center" }}>
                 <Heading>{rec.titleSv}</Heading>
-                {page === 0 && index === 0 && !submittedSearch && (
+                {page === 0 && index === 0 && !submittedSearch && !holiday && (
                   <Tag label="Toppval" tone="accent" />
                 )}
               </Row>