Errors and validation fixes, docs

Release Notes

🎉 Major Highlights

📚 Complete Documentation Site

• New Docusaurus documentation site with comprehensive API reference
• Examples section with basic, validation, and advanced patterns
• AI integration guide for form generation
• Deployed to GitHub Pages

🚀 New Features

Type Safety Improvements

• 9 new type aliases replacing Record<string, any>:
  • IRValues, IRErrors, IRError, IRBoolean, IRTrue
  • IValuePayload, IBooleanPayload, IErrorsPayload
  • TFieldValidator
• Better TypeScript intellisense and error messages
• No breaking changes - fully backward compatible

Error Handling Documentation

• setErrors vs replaceErrors clearly documented
• setErrors: merges errors (preserves existing)
• replaceErrors: replaces all errors (for server validation)
• Submit validation uses replaceErrors for clean state

Form-Level Error Pattern documented

• __form__ or similar key for form-level errors
• Access via error.__form__ from useFormData()
• Coexists with field-level errors
• No new API - uses existing error store

🔧 Improvements

Hook API Corrections

• resetField and resetUntouched properly exported from useForm
• Documentation matches actual implementation
• Config methods documented as EventCallable (not synchronous functions)

🐛 Bug Fixes

Validation Behavior

• Changes submit validation logic, replaces all errors including client
• skipClientValidation checks use consistent data access pattern
• FormComponent uses useLayoutEffect for config synchronization