add: mock methods for batch API operations in tests

- Add getWalletOwnersBatch mock method to SubscriptionClient test mocks
- Add shouldSendBatch mock method to SubscriptionClient test mocks
- Ensure test files compile with new batch method signatures
- Maintain test coverage for refactored batch processing functionality

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: LeonardoVieira1630

apps/dispatcher/src/services/triggers/new-proposal-trigger.service.test.ts

@@ -48,8 +48,11 @@ describe('NewProposalTriggerHandler', () => {
     mockSubscriptionClient = {
       getDaoSubscribers: jest.fn(),
       shouldSend: jest.fn(),
+      shouldSendBatch: jest.fn(),
       markAsSent: jest.fn(),
-      getWalletOwners: jest.fn()
+      getWalletOwners: jest.fn(),
+      getWalletOwnersBatch: jest.fn(),
+      getFollowedAddresses: jest.fn()
     } as jest.Mocked<ISubscriptionClient>;
 
     mockNotificationClient = {

apps/dispatcher/src/services/triggers/proposal-finished-trigger.service.test.ts

@@ -41,8 +41,11 @@ describe('ProposalFinishedTriggerHandler', () => {
     mockSubscriptionClient = {
       getDaoSubscribers: jest.fn(),
       shouldSend: jest.fn(),
+      shouldSendBatch: jest.fn(),
       markAsSent: jest.fn(),
-      getWalletOwners: jest.fn()
+      getWalletOwners: jest.fn(),
+      getWalletOwnersBatch: jest.fn(),
+      getFollowedAddresses: jest.fn()
     } as jest.Mocked<ISubscriptionClient>;
 
     mockNotificationClient = {