Add GpuQuad.gpuTrace(m) printing "[GPUTRACE] "+getClass().getSimpleName()+"."+m (off unless
-Dtp.trace=1). Instrument the un-overridden GPU methods (potential oracle gaps): getCltData,
presentCltData, eraseGpuCorrs, execCorr2D (bundled), readbackTasks, setFullFrameImages, getCorrTdData,
getCorrIndices, getCorrComboIndices, getExtra, getTextureIndices, getRBGA, execRBGA, execTextures.
Since GpuQuadJna extends GpuQuad, the trace prints "GpuQuad.X" under JCuda and "GpuQuadJna.X" if a JNA
run falls through to one (= coverage gap) -> reveals oracle's real GPU usage before any NPE.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>