Add RFE evaluation scoring to prd-rfe-workflow

[ymanor2404]

Summary

• Adds /rfe.evaluate command to score RFEs against 5 quality criteria
• Modifies /rfe.breakdown to automatically evaluate each RFE after creation
• Evaluation scores are appended to each RFE file footer

Evaluation Criteria (1-5 each, 25 total)

1. Clarity of Purpose and Stakeholder Alignment
2. Structural Completeness and Organization
3. Actionability and Testability
4. Language Quality and Communicative Tone
5. Role Consistency and Perspective

Output Format

Each RFE gets a footer appended:

---
## Evaluation
**Score**: X/25 | Clarity: X | Structure: X | Actionability: X | Language: X | Role: X

[One sentence explaining the key factors that influenced the scores.]

Test plan

• Run /rfe.breakdown on a PRD and verify evaluations are appended to each RFE
• Run /rfe.evaluate standalone on existing RFEs
• Verify RFEs scoring below 15/25 are highlighted for revision

🤖 Generated with Claude Code