Create English version of appendix-b.md for website.en

[Copilot]

This PR creates a complete English translation of appendix-b.md (Naming Conventions and Coding Standards Examples) for the website.en folder structure as requested.

Changes Made

• Created: website.en/MarkDown/appendix-b.md - Complete English translation of the Japanese version
• Translation Quality: All 875 lines of Japanese content translated to natural American English
• Content Preserved: All technical content, code examples, tables, and markdown structure maintained exactly
• Image Links: Updated to reference ../Images/banner-appendix-b.svg in the website.en structure
• Encoding: File saved as UTF-8 without BOM as specified

Content Overview

The translated appendix covers comprehensive programming standards including:

• Basic naming conventions for C#, Java, Python, and JavaScript/TypeScript
• Domain-driven naming strategies using ubiquitous language
• Coding convention examples with detailed file structure guidelines
• Code quality checklists covering naming, structure, performance, security, and maintainability
• Method design principles and exception handling standards
• Comment and documentation best practices with language-specific examples

Validation Results

✅ Zero Japanese characters remain - Validated using Python regex
✅ American English conventions used throughout (color, organization, analyze)
✅ Image references work - Banner image exists in website.en/Images/
✅ Markdown structure preserved - Headers, code blocks, and tables intact
✅ File encoding correct - UTF-8 without BOM
✅ Complete translation - 872 lines covering all original content

The English version maintains complete fidelity to the original while using natural, consistent American English terminology throughout all technical explanations and guidelines.

Fixes #193.

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[Copilot]

Pull Request Overview

This PR creates a complete English translation of the Japanese appendix-b.md file for the website.en folder structure. The translation provides comprehensive programming naming conventions and coding standards for multiple programming languages.

Key Changes

• Complete English translation of 873 lines of Japanese technical documentation
• Standardized American English conventions (color, organization, analyze) throughout
• Updated image references to work within the website.en folder structure