fix: parse excluded_classifications as array and handle companies API response

- Fixed settings API to parse excluded_classifications as array
- Fixed companies API response handling (returns {companies: []} not array)
- Resolves TypeError: excluded_classifications.filter is not a function
- Resolves TypeError: s.sort is not a function

app/api/kiosk/settings/route.ts

@@ -12,8 +12,8 @@ export async function GET(request: NextRequest) {
       let value = row.setting_value;
       
       // Parse specific settings
-      if (row.setting_key === 'excluded_company_ids') {
-        value = value ? value.split(',').map((id: string) => id.trim()).filter(Boolean) : [];
+      if (row.setting_key === 'excluded_company_ids' || row.setting_key === 'excluded_classifications') {
+        value = value ? value.split(',').map((item: string) => item.trim()).filter(Boolean) : [];
       } else if (row.setting_key === 'show_rmm_alerts') {
         value = value === 'true';
       } else if (['cycle_interval', 'refresh_interval'].includes(row.setting_key)) {

app/kiosk/settings/page.tsx

@@ -62,7 +62,9 @@ export default function KioskSettingsPage() {
       const res = await fetch('/api/companies');
       if (res.ok) {
         const data = await res.json();
-        setCompanies(data.sort((a: Company, b: Company) => 
+        // API returns { companies: [...] }
+        const companiesList = data.companies || [];
+        setCompanies(companiesList.sort((a: Company, b: Company) => 
           a.companyName.localeCompare(b.companyName)
         ));
       }