OXYGENHUB

Changes up to # 5b1114a04905 · 5

See as swimlanes (independent work side by side)

Import the Oxygen specification and the first Rust implementation (root change)
unknown ·
◈ ff0af1ee299d
Spec §5.5 encoding conventions; SIGPIPE handling in the CLI; clippy fixes head
Andy McCall ·
✔ 5b1114a04905
Identities and composite Ed25519 + ML-DSA-65 signatures; oxy identity, verify, config
Andy McCall ·
✔ 1983686fb7a7
FastCDC chunking with a pinned gear table; oxy checkout with checkout-safety rules
unknown ·
◈ f9c98deef326
Reuse NodeIds across snapshots, make undo skip snapshot ops, clippy fixes
unknown ·
◈ 55e5a16a2b9c