weiihann 7aebfb3c71 nomt/core: add Phase 1 core primitives for NOMT binary merkle trie ... Implement foundational types and algorithms for the NOMT storage engine: - node.go: Node/KeyPath/ValueHash types with MSB-based kind discrimination - hasher.go: Keccak256 hashing with leaf/internal MSB labeling - page.go: 4096-byte RawPage layout (126 nodes + elided children + pageID) - pageid.go: PageID encode/decode with shift-then-add encoding - triepos.go: TriePosition navigation (Down/Up/Sibling/PageID/NodeIndex) - pagediff.go: 128-bit PageDiff bitfield for tracking changed nodes - update.go: BuildTrie 3-pointer left-frontier algorithm, LeafOpsSpliced Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>		2026-02-12 17:05:00 +08:00
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core	nomt/core: add Phase 1 core primitives for NOMT binary merkle trie	2026-02-12 17:05:00 +08:00
DESIGN.md	phase 1	2026-02-12 16:25:06 +08:00