chore: add CODEOWNERS

[inaniloquentee]

Summary

• Add .github/CODEOWNERS with module-level ownership for RL-Kernel core areas.
• Cover kernels, native CUDA/C++ sources, executors, tests, CI/build files, docs, examples, and benchmarks.
• Use existing core reviewer handles from the repository reviewer configuration and contributor history.

Validation

• Verified the PR diff only changes .github/CODEOWNERS.
• Ran git diff --cached --check before committing.

Summary by CodeRabbit

• Chores
  • Added repository ownership configuration (CODEOWNERS) to clarify review responsibilities across core components, runtime ops, native sources, examples, benchmarks, tests, CI/build, and documentation.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: baa9671b-91b3-44e1-962b-690d6f0bbbc6

📥 Commits

Reviewing files that changed from the base of the PR and between d10485a and c0b31b0.

📒 Files selected for processing (1)

• .github/CODEOWNERS

✅ Files skipped from review due to trivial changes (1)

• .github/CODEOWNERS

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📝 Walkthrough

Walkthrough

Adds a .github/CODEOWNERS file defining code ownership across the RL-Kernel repository, mapping modules, kernel operation variants, C++/CUDA sources, examples, benchmarks, tests, and CI/documentation files to designated code owners with GitHub documentation references.

Changes

Repository Code Ownership Configuration

Layer / File(s)	Summary
CODEOWNERS configuration and ownership rules .github/CODEOWNERS	Introduces complete CODEOWNERS file assigning repository code owners to RL-Kernel core modules, kernel subpackages (including CUDA/PyTorch/Triton/ROCm operation variants), C++/CUDA source directories, alignment model wrappers, examples, benchmarks, test suites, and CI/build/documentation configuration files, with header comments referencing GitHub's CODEOWNERS documentation.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Poem

🐰 Code owners set across the land,
Each path now marked by steady hand,
From csrc to kernels, docs in line,
A tidy map so reviewers find,
Who watches code — one hop at a time.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely summarizes the main change: adding a CODEOWNERS configuration file to the repository.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/add-codeowners

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_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[Flink-ddd]

LGTM! Thanks.