fix: resolve linting errors and update EIP-5792 test expectations

- Remove unused variables (index, chainId parameters)
- Replace non-null assertions with conditional spreading
- Remove unused imports (act from @testing-library/react)
- Prefix unused variables with underscore (_originalWindow)
- Update EIP-5792 tests to expect version 2.0.0 format

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: TaprootFreak

src/__tests__/api/sell-gasless-api.test.ts

@@ -250,7 +250,7 @@ describe('Sell Gasless API Response', () => {
       expect(eip5792?.paymasterUrl).toBeDefined();
 
       // Each call needs: to, data, value
-      eip5792?.calls?.forEach((call, index) => {
+      eip5792?.calls?.forEach((call) => {
         expect(call.to).toBeDefined();
         expect(call.data).toBeDefined();
         expect(call.value).toBeDefined();
@@ -286,10 +286,9 @@ describe('Gasless Response Variants', () => {
   it('should handle response with only EIP-7702 (no EIP-5792)', () => {
     const responseWithOnlyEip7702: SellPaymentInfoResponse = {
       ...mockApiResponse,
-      depositTx: {
-        ...mockApiResponse.depositTx!,
-        eip5792: undefined,
-      },
+      depositTx: mockApiResponse.depositTx
+        ? { ...mockApiResponse.depositTx, eip5792: undefined }
+        : undefined,
     };
 
     const hasEip5792 = !!responseWithOnlyEip7702.depositTx?.eip5792;
@@ -305,10 +304,9 @@ describe('Gasless Response Variants', () => {
       ...mockApiResponse,
       gaslessAvailable: false,
       eip7702Authorization: undefined,
-      depositTx: {
-        ...mockApiResponse.depositTx!,
-        eip5792: undefined,
-      },
+      depositTx: mockApiResponse.depositTx
+        ? { ...mockApiResponse.depositTx, eip5792: undefined }
+        : undefined,
     };
 
     const hasEip5792 = !!responseWithNoGasless.depositTx?.eip5792;
@@ -329,7 +327,7 @@ describe('Pimlico Paymaster URL', () => {
     { name: 'polygon', chainId: 137 },
   ];
 
-  chains.forEach(({ name, chainId }) => {
+  chains.forEach(({ name }) => {
     it(`should have valid URL format for ${name}`, () => {
       const url = `https://api.pimlico.io/v2/${name}/rpc?apikey=test_key`;
 

src/__tests__/change.hook.test.ts

@@ -1,4 +1,4 @@
-import { renderHook, act } from '@testing-library/react';
+import { renderHook } from '@testing-library/react';
 import { useChange } from '../hooks/change.hook';
 
 describe('useChange', () => {

src/__tests__/eip5792-real-hooks.test.ts

@@ -280,11 +280,12 @@ describe('EIP-5792 Real Hook Tests', () => {
         }
         if (method === 'wallet_sendCalls') {
           expect(params?.[0]).toMatchObject({
-            version: '1.0',
+            version: '2.0.0',
             chainId: '0x1',
             from: TEST_ACCOUNT,
+            atomicRequired: false,
             capabilities: {
-              paymasterService: { url: TEST_PAYMASTER_URL },
+              paymasterService: { url: TEST_PAYMASTER_URL, optional: false },
             },
           });
           return { id: 'bundle-123' };
@@ -455,9 +456,10 @@ describe('EIP-5792 Real Hook Tests', () => {
       });
 
       expect(capturedParams[0]).toEqual({
-        version: '1.0',
+        version: '2.0.0',
         chainId: '0x1',
         from: TEST_ACCOUNT,
+        atomicRequired: false,
         calls: [
           {
             to: '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48',
@@ -466,7 +468,7 @@ describe('EIP-5792 Real Hook Tests', () => {
           },
         ],
         capabilities: {
-          paymasterService: { url: TEST_PAYMASTER_URL },
+          paymasterService: { url: TEST_PAYMASTER_URL, optional: false },
         },
       });
     });

src/__tests__/iframe.hook.test.ts

@@ -2,7 +2,7 @@ import { renderHook, act } from '@testing-library/react';
 import { useIframe } from '../hooks/iframe.hook';
 
 describe('useIframe', () => {
-  const originalWindow = global.window;
+  const _originalWindow = global.window;
 
   beforeEach(() => {
     // Reset window mock

src/__tests__/resize-observer.hook.test.ts

@@ -68,7 +68,7 @@ describe('useResizeObserver', () => {
 
   it('should disconnect observer on unmount', () => {
     const callback = jest.fn();
-    const { result, unmount } = renderHook(() => useResizeObserver<HTMLDivElement>(callback));
+    const { unmount } = renderHook(() => useResizeObserver<HTMLDivElement>(callback));
 
     unmount();