feat: use BitArray for bit-packed trie node path encoding#21
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Port the key encoding optimization from go-ethereum's binary trie (go-ethereum@c01a0eaa) to state-actor. Trie node DB keys now use bit-packed paths (ceil(depth/8) bytes) instead of byte-per-bit (depth bytes), reducing key size up to 8x. Changes: - makePath uses bintrie.BitArray for bit-packed path construction - regroupTrieNodes rewritten with DFS-based depth tracking and BitArray child navigation (bit-packed paths are depth-ambiguous) - Stem move batch ordering: deletes before puts to prevent key collisions across depths - go.mod: replace directive for local go-ethereum with BitArray - Rename EnableVerkleAtGenesis -> EnableUBTAtGenesis (upstream API) - Update golden hashes for upstream big-endian slot key hashing
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Port the key encoding optimization from go-ethereum's binary trie (go-ethereum@c01a0eaa) to state-actor. Trie node DB keys now use bit-packed paths (ceil(depth/8) bytes) instead of byte-per-bit (depth bytes), reducing key size up to 8x.
Changes:
Depends on ethereum/go-ethereum#34772