Cycle 0007 bundles Gitea #4 (exposure node) and #5 (sim-optimal broker) — the two
halves of the signal-quality loop, the realization of the C10 reframe. Ships two
aura-std nodes: Exposure { scale } (clamp(signal/scale, -1, +1)) and
SimBroker { pip_size } (causal prev_exposure * dprice / pip_size integration, no
look-ahead). Engine unchanged — pure node authoring on the frozen substrate.
grounding-check: PASS (all substrate assumptions ratified by green tests).
refs #4#5
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>