- AGENTS.md: add cache system to STRUCTURE, WHERE TO LOOK, BUILD FLOW,
BUILD COMMANDS (--force-rebuild), and CONVENTIONS (dep_hashes.toml,
binary store restore, package_groups syntax)
- CHANGELOG.md: comprehensive entry for Phase 1-3 + kernel MWAIT +
ninja-build Redox support
- local/AGENTS.md: note installer fork adds package groups support
- BUILD-CACHE-PLAN.md: fix TOML syntax (underscores not hyphens),
update all phases to COMPLETE with implementation details, add cache
flow diagram, add verification results
vasilito
7d62a7c0ab