perf: zero-heap-allocation Poseidon hash path - #64

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perf/zero-alloc-poseidon

Commits on Sep 22, 2026

test: freeze Poseidon hash outputs as a differential oracle

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claude
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9d515d3
perf: eliminate heap allocations from the Poseidon hash path

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be600a0
test: cover width and input-count boundaries, pin zero-allocation

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5b1703f
chore: drop the orphaned num-bigint dependency

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8e74b5f
fix: avoid adding PoseidonError variants that break downstream callers

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d96380f
fix: satisfy the chunks_exact_to_as_chunks lint on newer clippy

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83a5a3a
fix: LE byte benchmark measured an error return, not hashing

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4edf10b
fix: declare the 1.88 MSRV and close a caller-reachable overflow

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17df367