Move the emulator into crates/gba-core, the original demo programs into
crates/gba-demos, and the minifb frontend into crates/desktop. The binary
is now gameboy-rust. Imports change from gba_rust to gba_core/gba_demos;
no behavior changes.
gba-core has no dependencies. Its integration tests use gba-demos as a
development dependency.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Configure direnv, native Darwin compiler flags, and pinned desktop dependencies. Exclude build outputs, local environments, ROMs, and saves.
Start an ordered import of existing work. Feature chunks share dependencies; validate the integrated stack, not each intermediate import.
