fix: bundle CLI dependencies to resolve global module resolution issues

[diegomarino]

Summary

Fixes module resolution issues in global npm installations by bundling CLI dependencies directly in the package.

Problem

Users installing legal-markdown-js globally (especially with Homebrew-installed Node) were experiencing:

TypeError: Cannot read properties of undefined (reading 'action')
Error: Cannot find module 'commander'

This happened because ESM module resolution in global npm installs doesn't always correctly resolve dependencies in the package's node_modules.

Solution

Used bundleDependencies to bundle CLI-specific dependencies (commander, chalk, @inquirer/prompts) directly in the npm tarball. This is the standard npm solution for CLI packages.

Why this works:

• Dependencies are physically present in the published package's node_modules
• No reliance on npm's module resolution in global installs
• Works consistently across all installation methods (global, local, npx)
• Standard approach used by TypeScript, ESLint, Prettier, and other major CLIs

Changes

"bundleDependencies": [
  "commander",
  "chalk",
  "@inquirer/prompts"
]

Impact

• ✅ No code changes - TypeScript/JavaScript code remains ESM
• ✅ Works in all environments - Homebrew, nvm, direct Node install
• ✅ Simple and maintainable - Standard npm feature
• ⚠️ +500KB tarball size - acceptable tradeoff for reliability

Testing

• Created tarball with npm pack - dependencies bundled correctly
• Installed globally with npm link
• Tested CLIs from /tmp (different working directory)
• Verified module resolution works correctly
• All unit tests pass

References

• npm bundleDependencies: https://docs.npmjs.com/cli/v10/configuring-npm/package-json#bundledependencies
• Used by: typescript, eslint

[Copilot]

Pull Request Overview

This PR fixes module resolution issues in global npm installations by bundling CLI dependencies directly in the package tarball. The solution addresses errors where globally installed packages couldn't find their dependencies due to ESM module resolution quirks.

• Adds bundleDependencies configuration to package.json
• Bundles CLI-specific dependencies (commander, chalk, @inquirer/prompts) directly in the npm package
• Uses standard npm approach for CLI packages to ensure reliable dependency resolution

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