feat: Update to ES modules and latest dependencies

[ahanoff]

🚀 Major Update: ES Modules & Latest Dependencies

This PR updates the project to use ES modules and the latest development dependencies, following the official GitHub Actions TypeScript template.

✨ Key Changes

ES Modules Migration

• Added "type": "module" to package.json
• Updated exports configuration
• Updated Node.js requirement to >=24.0.0

Build System Update

• Replaced @vercel/ncc with rollup build system
• Updated build output from lib/main.js to dist/index.js
• Added rollup configuration with TypeScript plugin

Latest Dependencies

• Updated to ESLint v9 with flat config (eslint.config.mjs)
• Updated to Jest v30 with ES modules support
• Updated TypeScript to latest version
• Updated all dev dependencies to match official template

CI/CD Improvements

• Replaced old test workflow with new CI workflow based on official template
• Added .node-version file for consistent Node.js version
• Updated GitHub Actions to use latest versions (v5)

Configuration Updates

• Updated action.yml to use new build output
• Updated tsconfig.json for ES modules support
• Updated jest.config.js for ES modules support
• Added proper ignore patterns for dist directory

🧪 Testing

All CI checks are passing:

• ✅ Format check
• ✅ Linting
• ✅ Tests (Jest with ES modules)
• ✅ Build (Rollup)

📋 Checklist

• [x] Updated to ES modules
• [x] Updated all dependencies to latest versions
• [x] Migrated build system to Rollup
• [x] Updated CI workflow to official template
• [x] Fixed all linting issues
• [x] Updated configuration files
• [x] Added proper ignore patterns
• [x] All tests passing

🔗 References

Based on the official GitHub Actions TypeScript template:

• Package.json
• ESLint Config
• CI Workflow