NEVER FOLD · LINEAR · TRUTH WITHOUT CURL
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Law: BGS ground → BGF measure → SPV rides BGF
Free never assigned into field / shell / ground.
No duo as law. No dual-SSBO story as truth.

Static: engine/*.comp + Build · zero field[i]=free assignments
Runtime: ./Build/rtx_glx
  field_matches_bgf  PASS
  free_matches_spv   PASS
  both_lanes_odd|1   PASS
  RESULT PASS · never fold · GRIN free=1

TRUTH without curl: local GL · KateRTX law · file:// pack · Hostess offline
God Bless