chore: DevKit conformance audit — minor improvements

[HerbHall]

DevKit Conformance Audit (2026-03-04)

Score: 90% — excellent

DigitalRain has strong DevKit conformance for a Rust project.

Minor Gaps

• No Makefile — Rust uses Cargo directly, acceptable but a Makefile with standard targets (build, test, lint, clean) would improve consistency
• No nightly build workflow — DevKit now has nightly-rust.yml template available
• No release gate workflow — DevKit has release-gate.yml template available

What's Working

CLAUDE.md, CI (check/test/build on Linux+Windows), pre-push hook, clippy config, .editorconfig (root=false), release-please (rust type), LICENSE, .gitignore.

Note

No standalone VERSION file — Cargo.toml is the version source of truth for Rust, which is acceptable.