Release 4.1.1: Add type definitions and update dependencies

[knowledgecode]

Summary

This PR prepares for the release of version 4.1.1, adding type definitions for additional modules and updating dependencies.

Changes

Type Definition Support

• Add type definition (.d.ts) build configuration for locales, numerals, and timezones modules in rollup.config.ts
• Add types field to package.json exports for locales/*, numerals/*, and timezones/*
• This resolves TypeScript import errors in VSCode when importing these modules

Dependency Updates

• Bump version to 4.1.1
• Update development dependencies:
  • @types/node: 24.7.0 → 24.10.1
  • @vitest/coverage-v8: 3.2.4 → 4.0.9
  • eslint: 9.37.0 → 9.39.1
  • rollup: 4.52.4 → 4.53.2
  • typescript-eslint: 8.46.0 → 8.46.4
  • vitest: 3.2.4 → 4.0.9

Security Fix

• Fix js-yaml prototype pollution vulnerability (moderate severity)

Commits

• Add type definitions for locales, numerals, and timezones
• Bump version to 4.1.1 and update dependencies

Test Plan

• Build completes successfully
• Type definition files are generated correctly
• Security vulnerabilities are resolved