fix(vendor): pass bsrData prop to VendorDataView - resolves black screen

VendorDataView was refactored to receive BSR data as a prop but App.tsx
was not updated to pass it, causing the component to crash on undefined
and show a blank screen. Also fixes supabase.ts type errors and removes
dead code.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

App.tsx

@@ -959,7 +959,7 @@ const App: React.FC = () => {
 
               <Suspense fallback={<LoadingSpinner />}>
                 <div className={view === 'vendor' ? '' : 'hidden'}>
-                  <VendorDataView />
+                  <VendorDataView bsrData={bsrData} />
                 </div>
               </Suspense>