- config package doc: explain Duration fields, TOML format, env vars - duration.go: expanded godoc with access pattern examples - README: show .Duration access in quick start Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Project scaffolding: go.mod, Makefile, .golangci.yaml, doc.go - README, ARCHITECTURE, PROJECT_PLAN, PROGRESS documentation - db package: Open (WAL, FK, busy timeout, 0600 permissions), Migrate (sequential, transactional, idempotent), SchemaVersion, Snapshot (VACUUM INTO) - 11 tests covering open, migrate, and snapshot Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
