CC-2673/add-wero

[Ryouzanpaku]

Also inclueds:

• CC-2787
• Some code style fixes fromsonarqube in test classes.
• Fixes some integration tests that failed before.

[Copilot]

Pull Request Overview

This PR implements code style improvements based on SonarQube findings and introduces support for Wero payment method including its related models and test coverage.

• Removes unnecessary public modifiers from test class and method declarations (JUnit 5 package visibility)
• Replaces wildcard imports with explicit import statements for better code clarity
• Adds Wero payment type support with EventDependentPayment configuration and comprehensive test coverage

Reviewed Changes

Copilot reviewed 81 out of 81 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
Test classes (multiple)	Removed public modifiers from test classes and methods, replaced wildcard imports with explicit imports
WeroTest.java	Added comprehensive test coverage for new Wero payment type including charge, authorize, and additional transaction data scenarios
AdditionalTransactionDataWeroTest.java	Added unit tests for Wero-specific additional transaction data serialization and deserialization
PaypageV2Test.java	Extended PaypageV2 tests to include Wero payment method configurations with EventDependentPayment support
ApiConfigTest.java	Updated test base URL for paypage service from unzer.io to unzer.com
TokenServiceTest.java	Moved from service package to integration package
AbstractPaymentTest.java	Updated test customer data (email and shipping address)

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[sixer1182]

Please check the following:

• My comments
• Comments by Copilot
• failing tests

To avoid extensive and unrelated changes in the same branch we should next time create a second task and branch e.g. for the test updates in this case. This was really hard to review.