REINS ("h3_repr_steering") only ever captured while its own toggle was on --
turning it off also stopped it from learning, with no way to bank rating
history separately. New h3_repr_steering_passive_capture keeps the existing
unconditional per-block capture running (forcing strength to 0 so nothing is
ever injected) even while the main toggle is off. Exposed a real dormant bug
in REINS' own console print: it claimed "applying learned direction(s)"
whenever a direction existed, regardless of strength -- harmless before
because the toggle and strength widget always moved together, not once
passive capture legitimately runs at strength 0 with real data available.
Fixed to report "capturing only" in that case, mirroring h3_q_steering's own
already-fixed version of the same print.
Also: h3_q_steer_block/h3_q_steer_strength (from the H3 query steering
feature) were never wired into the Movie Editor's Settings UI, only exposed
as raw ComfyUI node widgets -- missing this project's own rule that every
new sampler toggle lands in the Editor in the same change. Added both,
plus the new passive-capture checkbox, to Engine Settings > Chain Guidance
alongside REINS' existing controls.