PTQ Workflow Integration for cache-dit

Goal

Integrate one PTQ workflow in a way that feels native to cache-dit:

• public API stays simple
• backend-specific logic stays localized
• save/load UX is predictable
• fast tests and slow tests cover different risks
• docs show only the public workflow

This skill is based on lessons from the SVDQ PTQ integration, but SVDQ PTQ is a reference only.

Core Rule

Do not mechanically copy SVDQ PTQ files.

Use the SVDQ PTQ integration to learn: