Migrate @data-driven-forms/react-form-renderer package from JavaScript to TypeScript.

Package Details:

• Package: @data-driven-forms/react-form-renderer
• Current size: 85 JS files, 9,327 lines of code
• Purpose: Main form rendering engine - core package that all mappers depend on
• Priority: HIGH - Core package needed by all component mappers

Migration Tasks:

• Convert .js/.jsx files to .ts/.tsx
• Add proper TypeScript type definitions for form schemas
• Type the form rendering engine interfaces
• Update React component props with proper TypeScript types
• Ensure form validation types are properly defined
• Update imports/exports to use TypeScript types
• Run comprehensive tests to ensure functionality is preserved
• Update any generated type definitions to source types

Technical Notes:

• Should be migrated after @data-driven-forms/common
• All component mappers depend on this package
• TypeScript infrastructure already configured
• Must maintain backward compatibility for existing consumers

Repository: https://github.com/data-driven-forms/react-forms
Package Path: packages/react-form-renderer/