- Run cargo fmt on all Rust crates for consistent formatting
- Update CLAUDE.md with WASM plugin commands and dev.ps1 instructions
- Update wiki: add WASM plugin architecture, rewrite dev environment docs
- Minor frontend cleanup (unused imports)
Add doc comments to distinguish the business version field (key-based
revision counter, currently fixed at 1) from the optimistic lock field
(version_field). Renaming requires a DB migration so deferred to later.