`catalyst.draw_graph` doesn't work with `gridsynth`

The following example errors out during the circuit graph construction with a cryptic error message.

import pennylane as qml
from catalyst import *

null_dev = qml.device("null.qubit", wires=1)

@qjit
@qml.transforms.gridsynth
@qml.qnode(null_dev)
def circuit():
    qml.RZ(0.1, 0)
    return qml.probs()

draw_graph(circuit, level=1)()

---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)

File catalyst/python_interface/inspection/draw.py:352, in draw_graph.<locals>._draw_callback(previous_pass, module, next_pass, pass_level)
    350 pass_instance = previous_pass if previous_pass else next_pass
    351 utility = ConstructCircuitDAG(PyDotDAGBuilder())
--> 352 utility.construct(module)
    353 # Default DPI to 300 and let user fine tune control through the return MPL figure
    354 utility.dag_builder.graph.set_dpi(300)

File catalyst/python_interface/inspection/construct_circuit_dag.py:136, in ConstructCircuitDAG.construct(self, module)
    134 self._reset()
    135 for op in module.ops:
--> 136     self._visit_operation(op)

File functools.py:946, in singledispatchmethod.__get__.<locals>._method(*args, **kwargs)
    944 def _method(*args, **kwargs):
    945     method = self.dispatcher.dispatch(args[0].__class__)
--> 946     return method.__get__(obj, cls)(*args, **kwargs)

File catalyst/python_interface/inspection/construct_circuit_dag.py:593, in ConstructCircuitDAG._func_op(self, operation)
    590 self._cluster_uid_counter += 1
    591 self._cluster_uid_stack.append(uid)
--> 593 self._visit_block(operation.regions[0].blocks[0])

File xdsl/ir/core.py:2264, in RegionBlocks.__getitem__(self, idx)
   2262         if i == idx:
   2263             return b
-> 2264     raise IndexError
   2265 else:
   2266     for i, b in enumerate(reversed(self)):

IndexError: 
"builtin.module"() ({
  "transform.named_sequence"() <{sym_name = "__transform_main", function_type = (!transform.op<"builtin.module">) -> ()}> ({
  ^bb0(%arg0 : !transform.op<"builtin.module">):
    %0 = "transform.apply_registered_pass"(%arg0) <{options = {epsilon = 1.000000e-04 : f64, "ppr-basis" = false}, pass_name = "gridsynth"}> : (!transform.op<"builtin.module">) -> !transform.op<"builtin.module">
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    | Error while interpreting op
    --------------------------------------
    "transform.yield"() : () -> ()
  }) : () -> ()
}) {transform.with_named_sequence} : () -> ()

I believe this might stem from a subroutine call the transform is generating, which the draw_graph functionality cannot handle. If so, a better error message should be provided to the user.

Start with the reproducing gridsynth example, then inspect catalyst/python_interface/inspection/draw.py around draw_graph and catalyst/python_interface/inspection/construct_circuit_dag.py, especially _func_op. Determine why the generated operation lacks the expected region during graph construction; done means the example no longer raises a cryptic IndexError and receives either supported graph output or a clear user-facing error.