Agents manager changelog

Changelog of the Agents manager for Radiohead Aura Platform release

Added

2025-06-30 - Sequence diagram for agents

Added to ATRIA documentation the technical flow corresponding to the operation of the Agents AI capability.
Related documents:
- Agent AI operational workflow

Last modified July 16, 2025: feat: Documentation for Radiohead release #AURA-30277 [RTM] (a6e97074)