Release 0.5.3

Release 0.5.2

Finish example and project release sweep

aver-lang 0.4.0

Prepare 0.3.0 release

release: 0.2.3

Add S-expression parser example and update Cargo.lock for 0.2.1

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Bump version to 0.2.0

New since 0.1.0: Aver-to-Rust transpiler with last-use analysis,
LSP server with VSCode extension.