Migrate from ESLint/Prettier to Biome #432

Description

Migrate the project's linting and formatting toolchain from ESLint and Prettier to Biome. Biome provides a unified, faster alternative that combines both linting and formatting capabilities.

Benefits

• Single tool for linting and formatting instead of two separate tools
• Significantly faster than separate ESLint + Prettier setup
• Reduced configuration complexity
• Better performance on large codebases

Steps

1. Install Biome as a dev dependency
2. Create biome.json configuration based on current ESLint and Prettier settings
3. Update npm scripts to use Biome for lint and format
4. Update CI/CD pipeline to use Biome instead of ESLint/Prettier
5. Update documentation (README, contributing guide) to reference Biome
6. Remove ESLint and Prettier dependencies

References

• https://biomejs.dev/
• Biome configuration guide