Raise NPC texture maps to 256

CHANGELOG.md

@@ -4,6 +4,13 @@ All notable user-facing changes to Gig Line. The format follows
 [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and versions use
 Semantic Versioning.
 
+## [Unreleased]
+
+### Changed
+
+- NPC albedo, normal and ORM maps are now 256² instead of 128², giving the
+  face, fabric and gear materials more detail at portrait distance.
+
 ## [0.9.4] — 2026-11-02
 
 ### Changed