- Add argent-private as git submodule at packages/argent-private
- Remove Sources/ from packages/native-devtools-ios (now in submodule)
- Update build.sh to resolve SRC_DIR from submodule path with clear
error message if submodule is not initialised
- Update scripts/dev.cjs to run git submodule update --init before
building dylibs
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>