v0.4.0

BREAKING CHANGES

• Noise key material derivation changed: now uses export_keying_material.
• Reminder: this may break interoperability with older peers. Upgrade client and server together.

Features

• Merge Hyphae support into the project.
• Add new crates:
  • asport-hyphae-handshake (0.1.0-beta.1)
  • asport-quinn-hyphae (0.1.0-beta.1)
• Add thread-safe UDP buffer pool to reduce allocations.
• Make UDP buffer pool size configurable.
• Improve UDP session path by avoiding redundant clones and improving validation.
• Improve client UDP session stability and buffer efficiency.
• Add configurable UDP session timeout and cleanup on server side.
• Replace once_cell usage with std::sync.
• Add license display in client/server.

Fixes

• Make log_level deserialization case-insensitive.
• Fix lint/clippy issues and formatting-related correctness issues.

Chores

• Release asport 0.4.0.
• Release Hyphae components 0.1.0-beta.1.
• Migrate shared logic into asport-common.
• Improve session lock handling and code clarity.
• Add automated Rust code quality CI workflow.
• Refresh docs (README/QUICK_START/SPEC) and reformat example configs.