test(security): add security tests for partners endpoints

[derevnjuk]

[!WARNING] :warning: The security tests could not be executed successfully. Please re-run the workflow.

Workflow execution details

• ✅ Repository Analysis: TypeScript, NestJS
• ✅ Entrypoints Discovery: 6 entrypoints
• ✅ Attack Vectors Identification
• ✅ E2E Security Tests Generation: 6 test files created
• ✅ E2E Security Tests Execution
• ⏭ Applying Security Fixes: Skipped
• ✅ Workflow Wrap-Up