Doc 17 step S0 scaffolding: WX_SCHEDULER=1 injector path with an
observation-only asyncify-scheduler.js skeleton (legacy shim stays
authoritative until S2), guard-beacon extraction with occurrence
recovery for rate-limited beacons, and the fixme'd N2 ordering spec
(add-then-move probe; un-fixme at S1).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TfxKn5utcntBSnxz4ZnYKs
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