QCDL operations: add reset and sxdg, and validate qubit arguments

docs/workflow.rst

@@ -618,11 +618,11 @@ You can also reset qubits individually.
 .. testcode::
 
     from dwave.gate.qcdl import qcdl
-    from dwave.gate.qcdl.operations import initialize
+    from dwave.gate.qcdl.operations import reset
 
     @qcdl(1)
     def reset_example(q0):
-        q0.reset()
+        reset(q0)
 
 
 .. _qcdl_basic_transpilation:
@@ -927,15 +927,15 @@ This example detects and resets a qubit if it has been erased.
 .. testcode::
 
     from dwave.gate.qcdl import qcdl
-    from dwave.gate.qcdl.operations import mced
+    from dwave.gate.qcdl.operations import mced, reset
 
     @qcdl(1)
     def detect_erasure_example(q0):
         erased = q0.Register(name="erased")
         erased <<= 0
         mced(q0, register=erased)
         with q0.If(erased == 1):
-            q0.reset()
+            reset(q0)
 
 This example conditions on a classical register.