feature/digital-twin-part-api-support

[ds-vlisenco]

Description
Refactor Integration Test with DigitalTwinPartApiSupport

This PR introduces a new support class DigitalTwinPartApiSupport to handle all REST interactions related to /digitalTwinPart endpoints.
It improves test maintainability, reduces duplication, and aligns with the established testing architecture (e.g., AssetsApiSupport).

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Changes

• Added: DigitalTwinPartApiSupport.java under integration/common/support
  • Endpoints covered:
    • POST /api/administration/digitalTwinPart
    • POST /api/administration/digitalTwinPart/detail
    • POST /api/administration/digitalTwinPart/searchable-values
  • Features:
    • JWT-based authorization using JwtRole.ADMIN
    • expectedStatusCode parameter for validation
    • Generic response deserialization with TypeRef<T> / Class<T>
    • Internal exception handling for JoseException
• Refactored:
  • All test methods in DigitalTwinPartsControllerIT now use DigitalTwinPartApiSupport
  • Direct RestAssured calls removed from the test class
• New Test Added:
  • shouldReturnSearchableValuesForFieldName()
    • Verifies functionality of /searchable-values endpoint
    • Fully based on the refactored structure

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Notes

• Fully tested in a private fork
• No breaking changes
• Compatible with existing codebase structure

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Related
Closes #3 – Refactor Integration Test with DigitalTwinPartApiSupport

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Pre-review checks
☑ Support class exists in correct package
☑ All /digitalTwinPart* calls extracted to support class
☑ Methods validate status code and return full response
☑ All tests pass and logic remains intact
☑ One new test using support class added
☑ Code reviewed and follows existing architectural standards