- PROJECT.md updated to reflect v1.0 completion (10 phases, 39 plans, 67 requirements). All key decisions marked as shipped. - README.md: comprehensive project documentation with quick start, architecture, tech stack, configuration, and project structure. - CHANGELOG.md: detailed changelog covering all 10 phases with feature descriptions organized by phase. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>