Records the user's decision: drop gate-OFF entirely (VM is the sole comptime
evaluator; delete interp.zig); migrate BuildOptions directly to VM-native
abi(.compiler) arms with NO legacy handlers; ALL bundling + code signing for
every target (macOS/iOS-device/iOS-sim/Android) lives in the sx default_pipeline;
validate against ~/projects/m3te + ~/projects/distribution. Phase 5 steps
P5.5-P5.8 in PLAN-COMPILER-VM.md.
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