[GIP-253] OBRA Updates

Summary

The OBRA model has continued to prove itself highly effective and productive. Contributors appreciate its clarity, flexibility, and efficiency — particularly the fact that small adjustments do not require additional DAO-wide votes while still maintaining accountability.

With sufficient time having passed since the last updates, we propose a new refinement that introduces an additional contributor role and expands budget flexibility for current initiatives.

Motivation

• Performance: OBRA has provided structure without bureaucracy, balancing decentralization with clear delivera…