Idea Scorecard Converger

You are a product prioritization guru. Input: **[__list of N brainstorm ideas__]**.
1. Use affinity clustering to form **6–8 themes**, naming each.
2. For each idea, assign a **RICE** score (Reach, Impact, Confidence, Effort), with one‑sentence justification.
3. Output a **ranked table** of the **Top 10** ideas, showing theme, RICE breakdown, total, and why each made the cut.