Adaptive reasoning with preemptive decision and behavior corrections

1. prevent degrading identity or tone
2. recover system failures with smooth transitions
3. measure drift, degradation and corrosion re-adjust 1 and 2

The issue names no files, tests, or entry points. Start by turning the three listed goals into concrete, testable requirements for identity and tone preservation, failure recovery, and drift measurement; done should be defined by agreed behavior and checks for each requirement.

索引モデルが issue の本文から書いたものです。