Purpose: summarize iterative optimization from initial baseline to final freeze.

• T1: strong reduction in pairwise redundancy, silhouette drop.
• T2: additional redundancy reduction, partial silhouette recovery.
• T3: slight redundancy rebound with better geometric stability.

Optimization improved redundancy materially while preserving a usable global geometry, leading to a publishable baseline.

Official final values: Final-frozen-results.