Translate 4 Chinese documentation files to English

- Translated EVALUATION_INDEX.md (230 lines)
- Translated COMPONENT_NAMING_CONVENTIONS.md (476 lines)
- Translated DEVELOPMENT_ROADMAP_2026.md (762 lines)
- Translated OBJECTSTACK_COMPONENT_EVALUATION.md (901 lines)

All translations use consistent terminology from reference doc:
- 平台基础组件 → Platform Basic Components
- 对象组件 → Object Components
- 渲染器 → Renderer
- 协议 → Protocol
- 便捷组件 → Convenience Components

Maintained all formatting, code blocks, tables, and structure perfectly.

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot