Add CODEOWNERS

[okramarenko]

No description provided.

[cursor]

PR Summary

Low Risk
Low risk change that only affects GitHub review ownership/routing; no runtime code or behavior is modified.

Overview
Adds a CODEOWNERS file assigning default ownership for all paths (*) to @okramarenko and @pmishchenko-ua, so GitHub will automatically request reviews from these owners.

^{Reviewed by Cursor Bugbot for commit d8c92f0. Configure here.}