Fix task graph name in grid scheduler setup

Author: orionpapadakis

src/main/java/org/beehive/gpullama3/tornadovm/layers/type/fp16/Qwen3FP16FFNLayers.java

@@ -172,7 +172,7 @@ List<ImmutableTaskGraph> setupFFNLayered() {
      * Setup a single transformer layer for Qwen3 with GQA
      */
     TaskGraph setupSingleQwen3FFNLayer(Qwen3TornadoWeights weights, int layerIndex) {
-        var taskGraphName = "ffn_layer_" + layerIndex;
+        var taskGraphName = "layer_" + layerIndex;
         TaskGraph unifiedLayer = new TaskGraph(taskGraphName);
         unifiedLayer.consumeFromDevice(state.wrapX);
         unifiedLayer.transferToDevice(DataTransferMode.FIRST_EXECUTION, //