v0.3.0

[0.3.0] - 2026-06-19

📚 Documentation

• Update README for 0.3.0 and regenerate CHANGELOG
• Remove early development notice from README
• Update channel parameter docs to reflect AsyncAPI 3.0 Parameter fields

🧪 Testing

• Expand coverage to ~98% and add CI coverage reporting

🐛 Bug Fixes

• Use variant ident as message name; add message_name override; detect collisions (closes #8) (reported by @mlilback, #8)

• Hoist shared $defs into components.schemas; rewrite payload $refs (closes #7) (#7, #6)

• Resolve clippy warnings in examples

• Bring Parameter object into AsyncAPI 3.0 compliance (closes #5) (reported by @pureions, #5)

• Handle open-ended JSON Schemas (e.g. serde_json::Value) without panic (closes #4) (reported by @csells, #4)

• Emit per-variant payload schema for tagged enums; embed $defs (closes #6, closes #2) (#6, #2, #2)