add Capsule Protocol (RFC 9297) and QUIC Datagram (RFC 9221) compliance - #2424

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mp0rta:pr/datagram-capsule

Commits on Mar 30, 2026

feat(h3): add capsule protocol utilities and datagram compliance (RFC 9221/9297)
mp0rta
committed
0f418f1
feat(h3): add capsule-protocol header validation (RFC 9297 §3.2/§3.4)
mp0rta
committed
e20a2dc
feat(h3): integrate capsule protocol into tokio-quiche driver
mp0rta
committed
351ff59