btc(test): G1 version_gate SSOT v36-activation boundary KAT (regression-lock) - #376
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Pin the V36 share-format/consensus-revision boundary as a regression lock: is_v36_active() flips at exactly version 36 (35->false, 36->true), uniform cross-coin, with compile-time static_asserts for the if-constexpr gate sites. Second KAT guards the SCOPE invariant that coin-specific segwit activation (BTC 33) is NOT folded into the uniform v36 gate. Proves the v36-delta BOUNDARY only; full v35 byte-parity is closed separately by the canonical golden-hex vector (G0). Rides existing btc_share_test exe, no build.yml change. btc_share_test green locally (boundary 2/2, suite 8/8).
frstrtr
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Pin the V36 share-format/consensus-revision boundary as a regression lock: is_v36_active() flips at exactly version 36 (35->false, 36->true), uniform cross-coin, with compile-time static_asserts for the if-constexpr gate sites. Second KAT guards the SCOPE invariant that coin-specific segwit activation (BTC 33) is NOT folded into the uniform v36 gate. Proves the v36-delta BOUNDARY only; full v35 byte-parity is closed separately by the canonical golden-hex vector (G0). Rides existing btc_share_test exe, no build.yml change. btc_share_test green locally (boundary 2/2, suite 8/8). Co-authored-by: frstrtr <frstrtr@users.noreply.github.com>
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Regression-lock golden KAT for the BTC G1 milestone: pins the version_gate SSOT v36-activation boundary so the #288-class accept-gate semantics cannot silently drift.
Scope: test-only, btc/ fenced (src/impl/btc/test/share_test.cpp, +44/-1). No consensus-value change, no build.yml change (rides existing btc_share_test target).
New KATs:
Local: btc_share_test 8/8 PASS (build clean to 100%). Signed, no third-party attribution.
Held for operator tap — I do not self-merge.