🏗️ improve agent readiness with skills and devcontainer

[Miyamura80]

Summary

• Added .claude/skills/code-quality.md to provide specialized instructions for AI agents on maintaining code quality.
• Added .devcontainer/devcontainer.json to provide a reproducible development environment with pre-installed uv and VS Code extensions.
• Improved agent readiness score from 66.2% to 69.2%.

[greptile-apps]

Greptile Overview

Greptile Summary

This PR enhances the repository's AI agent readiness by adding structured documentation and a reproducible development environment. The .claude/skills/code-quality.md file provides clear instructions for AI agents on code quality checks and workflows, while .devcontainer/devcontainer.json configures a consistent development environment with pre-installed uv and recommended VS Code extensions.

• Added code quality skill documentation with accurate make target descriptions
• Configured devcontainer with Python 3.12, uv, and essential VS Code extensions
• Properly chains uv installation with environment sourcing before running make setup
• All previous review comments have been addressed

Confidence Score: 5/5

• This PR is safe to merge with no issues found
• Both files are documentation/configuration only with no runtime code changes. All previous review comments have been properly addressed: ty is correctly described as a type checker, make ci lists all commands accurately, and the devcontainer properly sources the cargo environment before running setup. The changes align with the project's existing patterns.
• No files require special attention

Important Files Changed

Filename	Overview
.claude/skills/code-quality.md	Added comprehensive code quality documentation for AI agents with accurate command descriptions
.devcontainer/devcontainer.json	Added devcontainer configuration with proper uv installation and environment setup

[greptile-apps]

_{3 files reviewed, 3 comments}

_{Edit Code Review Agent Settings | Greptile}

[greptile-apps]

_{1 file reviewed, 1 comment}

_{Edit Code Review Agent Settings | Greptile}

[Miyamura80]

@greptileai review again