We should document that the Rust crate version on crates.io is currently synced to the npm release version, and does not represent an independent semantic-versioning contract for the Rust API.

Suggested scope:

• Add a short note in an obvious public place (for example docs/release docs/README/crates section)
• Explain that the crates.io version is aligned with npm releases
• Set expectations that Rust releases are not following semver independently

Context:

• We released 1.0, which may make people assume semver guarantees for the Rust crate
• This has already caused confusion internally in Discord