plan(dqn-v2): Plan 1 substrate + refactor complete (Tasks 9-17)
Appends Plan 1 completion note to the substrate plan doc, recording
all 10 commit SHAs from Tasks 8-17 and the exit criteria status.
Tasks 8-17 fully implemented: AdaptiveMonitor trait, 6 CPU-side read-only
monitors (atoms, gamma, kelly_cap, tau, epsilon, grad_balancer), 5 cold-path
GPU kernels (atoms_update, gamma_update, kelly_cap_update, tau_update,
epsilon_update), 3 static ISV constructor writes (cql_alpha, conviction_floor,
plan_threshold). All adaptive computation is now GPU-driven; CPU never
computes adaptive values (§4.C.6). Tasks 18.1-18.7 (validation run) pending.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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