Add HTML renderings for rubric10-semantic evaluation results

Generated human-readable HTML evaluation reports for all 4 claudecode_agent
concatenated D4D files:

- AI_READI_evaluation.html (60 KB) - Score: 31/50 (62.0%)
- CHORUS_evaluation.html (15 KB) - Score: 26/50 (52.0%)
- CM4AI_evaluation.html (11 KB) - Score: 28/50 (56.0%)
- VOICE_evaluation.html (12 KB) - Score: 46/50 (92.0%) - Best performer

Added rendering script:
- scripts/render_evaluation_html.py

HTML files include:
- Overall scores and metadata
- Element-by-element scoring with rationales
- Semantic analysis (identifier validation, consistency checks)
- Completeness gaps (high/medium/low priority)
- Strengths and weaknesses
- Actionable recommendations

Files are stored alongside the D4D documentation HTML in:
data/d4d_html/concatenated/claudecode_agent/

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Author: realmarcin