Note

Description

This PR standardizes the codebase to use trailing commas everywhere by changing Biome's trailingCommas configuration from "es5" to "all". This improves code consistency and reduces diff noise in future changes. The PR also enhances VSCode integration by explicitly configuring Biome as the default formatter for all supported file types.

Related Issue

None

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Refactoring (no functional changes)
• Other (please describe):

Changes Made

• Changed biome.json to use trailingCommas: "all" instead of "es5"
• Enhanced .vscode/settings.json with explicit Biome formatter configuration for TypeScript, JavaScript, JSON, and JSONC files
• Added .vscode/extensions.json to recommend the Biome extension
• Applied automatic formatting across 57 files to add trailing commas throughout the codebase

Testing

• I have tested these changes locally
• I have added/updated tests as needed
• All tests pass (npm test)

Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (if applicable)
• My changes generate no new warnings
• I have updated AGENTS.md if I made architectural changes

Additional Notes

This is a purely cosmetic change that improves code consistency. All changes are automated formatting - no manual code modifications were made. The trailing comma standard makes future diffs cleaner when adding new array/object items.

_{🤖 Generated by Claude | 2026-02-11 20:45 UTC}