When DEAD_ZONE_FLAG fires (kelly_f=0 ∧ all-flat ∧ no-cooldown), override
Kelly with ε_recovery_live (regime_observer-computed value ramping from
ε_min=0.05 to ε_max=0.50 as TAIL_EVENT_RECENCY grows). TIMEOUT_FLAG
gates resurrection off after MAX_DURATION=1000 steps (safety net).
Per Theorem 1 (spec v3): exit probability from absorbing state per step is
> 1 - 10^-23 given π(any Open) ≥ 0.05 over 1024 accounts. The Kelly
absorbing state no longer exists in the state graph (except the
operator-intended TIMEOUT terminal).
Block appended to end of rl_kelly_fraction_controller.cu (analytic Kelly
clamp first, then conditional override) and mirrored in Layer-4 branch
of rl_fused_controllers.cu.
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