TEST STATUS
===========

Core parser/writer tests: PASS
Synthetic KEY + BIFF V1 test: PASS
BIF reorder/resource remap property test: PASS
CSV import/export roundtrip: PASS
JSON project import/export roundtrip: PASS

Real BG2 KEY semantic roundtrip tested against the chitin.key found in the user's supplied support package:
- 192 BIF entries
- 62,575 resource entries
- 0 validation errors
- 1 preserved stock placeholder warning (empty ResRef/type 0)
- all BIF paths/sizes/flags preserved semantically
- all resource ResRefs/type codes/locators preserved

GUI source compiles successfully. This build environment does not have PySide6 installed and has no package-network access, so the GUI itself could not be launched here. The package includes INSTALL_REQUIREMENTS.bat for the user's Windows environment.
