feat(sendoso): Remove outdated documentation files and enhance action methods

- Deleted obsolete markdown files: CI_CD_VALIDATION_REPORT.md, ENDPOINTS_INVENTORY.md, FINAL_IMPLEMENTATION_SUMMARY.md, GUIDELINES_COMPLIANCE_REPORT.md, IMPLEMENTATION_STATUS.md, PR_READINESS_ANALYSIS.md, PR_SUBMISSION_CHECKLIST.md, and README.md.
- Updated action methods to improve parameter handling by integrating a new utility function for parsing input objects.
- Ensured all actions maintain compatibility with existing functionality while enhancing code quality and readability.

This commit streamlines the Sendoso integration by removing unnecessary documentation and refining action implementations, preparing for a more efficient development process.

Author: luancazarine