Two new slots:
- RL_F2_DISTILL_CENTERED_ENABLED_INDEX (817, bootstrap 1.0): master gate
for the F2 hinge in rl_q_pi_distill_grad.cu. Flip to 0.0 to fall back to
the legacy softmax(E_Q/τ) target (bit-equal with HEAD 0463e44e0).
- RL_F2_DISTILL_NOOP_SET_MODE_INDEX (818, bootstrap 0.0): selects the
no-op-set definition. Mode 0 = F2a static {Hold, TrailTighten, TrailLoosen}.
RL_SLOTS_END: 817 → 819.
Per spec docs/superpowers/specs/2026-06-04-bellman-target-foundation-reshape.md
§3.2 + §4.2 (F2 recommended, Revision 3 surfer-principle-preserving primary phase).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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