BTC Defensive v1 (SHADOW)

Regime-conditional increment, PREREG stamped 2026-09-26. v0 stress state gated by close-vs-SMA200: RISK_ON / BEAR_QUIET / STRESS_IN_RALLY / DEFENSIVE. ALLOCATES NOTHING. Adam-read precondition released by Eric 2026-09-26; price precondition met via frozen import (633 rows, sha256 df5b06c5). Rule frozen in scripts/btc_defensive_v1_shadow.py — edits require a new sensor id.