Re-Phase Vol.1.10: Orientation Note — From Map/Fiber/Kernel to Compatibility-Based Design

This orientation note explains how to read the Re-Phase framework after the transition from the early map/fiber/kernel viewpoint to the Level 0 compatibility-based design reading.The note clarifies that observation maps, inverse images, fibers, and kernels remain useful special cases, but are not the primitive layer of Re-Phase. The primitive layer is compatibility: conditions leave compatible candidates, accumulated conditions form admissible sets, contexts build order, recoverability sets the target, and indistinguishability organizes compatibility behavior.The note also emphasizes the three-side separation between the condition side, the configuration/admissible side, and the feature side. The condition side and feature side are not directly identified; they are compared through the common configuration/admissible side.This volume is a frozen reader orientation, not a complete volume index. It does not track current series status, planned extensions, or future DOI records.