fix: align CodeRabbit and Copilot review configs with other repos

[gamaware]

Summary

• Add language: en-US and chat: auto_reply: true to .coderabbit.yaml to match other repos
• Add drafts: false to auto_review settings in .coderabbit.yaml
• Restructure .github/copilot-instructions.md with proper H1 header, ## Review Priority and ## Expectations sections

Test plan

• Verify CodeRabbit picks up the language and chat settings on next PR review
• Verify Copilot code review still triggers with restructured instructions

Summary by CodeRabbit

• Chores
  • Updated code review automation configuration to exclude draft pull requests from automatic reviews and enabled automatic chat reply functionality.
  • Established comprehensive code review standards documentation with explicit requirements for code quality validation, security practices, and standardized commit conventions.

[coderabbitai]

Warning

Ignoring CodeRabbit configuration file changes. For security, only the configuration from the base branch is applied for open source repositories.

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: b78cf829-3ec0-41da-95b3-eb3bd74b59d5

📥 Commits

Reviewing files that changed from the base of the PR and between 23023fb and c63c5f3.

📒 Files selected for processing (2)

• .coderabbit.yaml
• .github/copilot-instructions.md

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📝 Walkthrough

Walkthrough

This PR updates CodeRabbit and GitHub Copilot configurations to establish language defaults, refine auto-review behavior on draft pull requests, enable automatic chat replies, and institute explicit code review standards including shellcheck compliance, variable quoting conventions, and Conventional Commits requirements.

Changes

Cohort / File(s)	Summary
CodeRabbit Configuration .coderabbit.yaml	Added explicit language setting to English (US), disabled auto-reviews on draft PRs, and enabled automatic chat replies.
Review Guidelines .github/copilot-instructions.md	Restructured header, introduced "Expectations" section establishing code review requirements: shellcheck/shellharden compliance, proper variable quoting, prohibition of hardcoded credentials, Conventional Commits format, and direct lint violation resolution.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A dash of config, some guidelines so clear,
Auto-replies chirp for all to hear!
No drafts will review, en-US set right,
Shellcheck and commits—standards bright! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main change: aligning CodeRabbit and Copilot review configurations with other repositories. This directly reflects the PR objectives and the modifications made to both configuration files.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ 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 fix/sync-review-configs

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[Copilot]

Pull request overview

Aligns CodeRabbit and GitHub Copilot review configuration files with the conventions used across related repositories, improving consistency of automated review behavior and instruction formatting.

Changes:

• Updated .coderabbit.yaml to set language: en-US, disable draft PR auto-reviews, and enable chat auto-replies.
• Restructured .github/copilot-instructions.md with a clear H1 and organized sections for review priorities and expectations.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
.github/copilot-instructions.md	Reformats Copilot review instructions into a clearer, sectioned document.
.coderabbit.yaml	Adds language/chat settings and adjusts auto-review behavior to exclude drafts.