fix(ramps): check for providers before checking array length (#27566)

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## **Description**

Fixes a bootstrap bug when providers are not available.

<img width="1206" height="2622" alt="Simulator Screenshot - mm-green -
2026-03-17 at 14 35 05"
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## **Related issues**

Fixes:

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Author: georgeweiler

app/components/UI/Ramp/hooks/useRampsProviders.test.ts

@@ -270,5 +270,19 @@ describe('useRampsProviders', () => {
 
       expect(mockDeterminePreferredProvider).not.toHaveBeenCalled();
     });
+
+    it('does not call determinePreferredProvider when providers is undefined', () => {
+      const store = createMockStore({ data: undefined });
+      mockDeterminePreferredProvider.mockClear();
+
+      renderHook(() => useRampsProviders(), {
+        wrapper: wrapper(store),
+      });
+
+      expect(mockDeterminePreferredProvider).not.toHaveBeenCalled();
+      expect(
+        Engine.context.RampsController.setSelectedProvider,
+      ).not.toHaveBeenCalled();
+    });
   });
 });

app/components/UI/Ramp/hooks/useRampsProviders.ts

@@ -72,7 +72,7 @@ export function useRampsProviders(): UseRampsProvidersResult {
   );
 
   useEffect(() => {
-    if (providers.length > 0 && !selectedProvider) {
+    if (providers && providers.length > 0 && !selectedProvider) {
       setSelectedProvider(
         determinePreferredProvider(completedOrders, providers),
       );