Specify Hyphae Native sidecar boundary

[terrizoaguimor]

Summary

• freeze the reduced Hyphae Console against exact Hyphae v1.0.1 release authority
• select a PliegoRS-owned loopback HTTP /v2 sidecar without raising the Rust 1.86 MSRV
• distinguish specified, non-executable fixtures from deferred fixtures in baseline reports
• keep G7 performance claims and durable G8 closure as explicit acceptance gates

Verification

• npm run test:phase-1
• npm run check:docs
• npm run check:product-truth
• npm run check:licenses
• npm run check:next-baseline -- --baseline target/benchmarks/next-hyphae-boundary-final-12ddc370
• git diff --check