CLAUDE: GpuQuadJna override updateQuadCLT + resetBayer (skip null gpuTileProcessor.bayer_set)

updateQuadCLT sets quadCLT + flag-only resetGeometryCorrection*(); skips the base's
gpuTileProcessor.bayer_set clear (N/A natively - bayer re-uploaded each convert). resetBayer no-op.
Fixes the second JNA NPE (updateQuadCLT:263).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/main/java/com/elphel/imagej/gpu/jna/GpuQuadJna.java

@@ -55,6 +55,17 @@ public class GpuQuadJna extends GpuQuad {
         // (num_pairs / sel_pairs / color_weights / corr_out_rad) is known at first use.
     }
 
+    // Switch this shared GpuQuad to a different scene's QuadCLT. Base also clears
+    // gpuTileProcessor.bayer_set (null here) — N/A natively: bayer + geometry are re-uploaded on the next
+    // exec, kernels are unchanged. resetGeometryCorrection*/() are flag-only (safe to call).
+    @Override public void updateQuadCLT(final QuadCLT quadCLT) {
+        this.quadCLT = quadCLT;
+        resetGeometryCorrection();
+        resetGeometryCorrectionVector();
+    }
+    // Native re-uploads bayer each convert_direct -> nothing to reset (base clears the null gpuTileProcessor flag).
+    @Override public void resetBayer() { /* no-op for the native backend */ }
+
     /** Native handles for the override implementations (added incrementally). */
     protected TpJna   lib()    { return lib; }
     protected Pointer module() { return module; }