ci: add crates release workflow

[developer0hye]

What changed

• Add a Release GitHub Actions workflow that publishes both crates to crates.io.
• Support automatic publishing from published GitHub Releases and manual publishing for existing tags.
• Validate that the release tag matches both crate versions and the CLI dependency before publishing.
• Update the release procedure to use the workflow and the CARGO_REGISTRY_TOKEN secret.

Why

This moves the crates.io publish step into GitHub Actions so releases can be completed from the repository using the configured CARGO_REGISTRY_TOKEN secret.

Verification

• git diff --cached --check
• Release workflow reviewed locally against cargo metadata output