Hashavatar 0.5.0

hashavatar 0.5.0

hashavatar 0.5.0 prepares the crate for dual permissive licensing and hardens the bundled demo server without changing the deterministic avatar rendering contract.

Highlights

• Starting with 0.5.0, the project is licensed as MIT OR Apache-2.0
• Added LICENSE-MIT and LICENSE-APACHE
• Removed the previous EUPL license files from the current source tree
• Added Fluxheim-style local and GitHub CI checks through scripts/checks.sh
• Added Dependabot configuration for Cargo and GitHub Actions updates
• Pinned GitHub Actions to immutable commit SHAs for CodeQL-friendly workflow hardening

Security And Quality

• Moved demo-server WebP rendering and encoding onto Tokio's blocking task pool to avoid starving async worker threads
• Added defense-in-depth HTTP security headers to demo HTML, image, and error responses
• Added regression coverage for the demo response security headers
• Updated tokio to 1.52.3
• Verified with scripts/checks.sh, including formatting, build, clippy, tests, CLI smoke exports, cargo deny check, and cargo audit

Compatibility

• No avatar rendering behavior changes are intended in this release.
• Existing deterministic fingerprints remain covered by the golden regression tests.
• Published 0.4.x and older versions retain their original release licensing. The MIT OR Apache-2.0 license applies starting with 0.5.0.