wire/wire.go — fhe's wire-format hardening boundary. FHE wire formats
nest deeper than pulsar's (CKKS ciphertext = Vec<Poly> over RNS chain
of Vec<u64>) so MaxDepth = 5 + larger MaxFrameBytes (32 MiB) reflect
the deeper polynomial structure.
Tests:
* TestValidateCiphertextFrame_RejectsHugeLength — regression for
lattice issue #4 attack input class. Same substrate, same
rejection.
* TestValidateCiphertextFrame_OverCap — MaxFHESliceLen+1 rejected.
go.mod adds luxfi/math v1.3.0 dependency.
This completes Phase 5 of LP-107: every Lux Go protocol repo
(pulsar, lens, fhe, lattice) now consumes the math substrate for
bounded wire decoding. The same lattice issue #4 attack input is
rejected identically across all four consumers.
