Strip out watchpoint system (thunkSetWatch, WATCH-PRE/POST), INT 10h
entry counters, segment verification dumps, and inline extern
declarations. Add neSetDebug to neload.h, correct -fno-gcse comment,
and add project CLAUDE.md for git-tracked notes.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
