v0.4.0

What's Changed

• ci: auto-release on version bump to main by @GeiserX in #16
• ci: bump codecov/codecov-action from 5 to 6 by @dependabot[bot] in #19
• ci: bump actions/checkout from 4 to 6 by @dependabot[bot] in #17
• ci: bump actions/setup-node from 4 to 6 by @dependabot[bot] in #18
• fix: treat future-timestamp lock files as stale + rename CLAUDE.md by @GeiserX in #20
• fix: harden cross-platform compatibility, security, and test coverage by @GeiserX in #21
• chore: bump version to 0.4.0 by @GeiserX in #22

Full Changelog: v0.3.2...v0.4.0