fix(mobile): plan/hushåll/profil felhantering + streckkod pausar kamera (MIKRO 54)

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

@@ -309,7 +309,7 @@ export default function PlanScreen() {
       ) : (
         <>
           <EmptyState text={t("plan.emptyDay")} />
-          {plan === null && (
+          {(plan === null || !hasEntries) && (
             <Button
               label={t("plan.generate")}
               onPress={() => generate.mutate()}

apps/mobile/src/app/barcode.tsx

@@ -111,6 +111,7 @@ export default function BarcodeScreen() {
     <View style={styles.container}>
       <CameraView
         style={StyleSheet.absoluteFill}
+        active={!busy}
         barcodeScannerSettings={{ barcodeTypes: ["ean13", "ean8", "upc_a", "upc_e"] }}
         onBarcodeScanned={(scan) => void onScanned(scan.data)}
       />

apps/mobile/src/app/household.tsx

@@ -42,6 +42,7 @@ export default function HouseholdScreen() {
   });
 
   if (me.isLoading || household.isLoading) return <LoadingView />;
+  if (me.isError) return <ErrorView onRetry={() => void me.refetch()} />;
   if (!householdId) {
     return (
       <Screen>

apps/mobile/src/app/profile.tsx

@@ -8,6 +8,7 @@ import {
   Body,
   Button,
   Card,
+  ErrorView,
   Heading,
   LoadingView,
   Row,
@@ -107,6 +108,7 @@ export default function ProfileScreen() {
   });
 
   if (me.isLoading) return <LoadingView />;
+  if (me.isError) return <ErrorView onRetry={() => void me.refetch()} />;
 
   const consentMap = new Map((consents.data ?? []).map((c) => [c.kind, c.status]));