(1) GpuQuadJna.execImcltRbgAll now passes ref_scene -> tp_proc_exec_imclt(use_ref)
so renderFromTD(true) renders gpu_clt_ref, not gpu_clt (TpJna binding updated).

(2) TEMP post-mortem in CuasMotion.correlatePair (gate -Dtp.dbg.corrpair=1,
one-shot): after the inter-correlation, SAVE ref (gpu_clt_ref) + scene (gpu_clt)
CLT renders to the model dir via saveImagePlusInModelDirectory (persist past the
later crash; no window flood). DBG-REF blank/NaN => reference not loaded =>
explains the all-NaN CORR2D (inter corr needs both images). REMOVE after fix.

Needs the tile_processor_gpu imclt use_ref commit + libtileproc.so rebuild.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>