Description

Extend the pedagogical engine to support Mastery-level metrics, focusing on efficiency, probability, and advanced tactical analysis.

Acceptance Criteria

• #1 Implement Mastery-level narrative adapter.
• #2 Verify metrics calculation against canonical engine expectations.
• #3 Update documentation with mastery-progression guidelines.

Definition of Done

• #1 The a11y is run agains the site and all claims are verified against the official rules and guidlines for Phalanx Duel