Add default dim=2 to Cirq QRE qubit manager qalloc APIs

[Copilot]

Cirq interop qubit allocation failed during decomposition/resource-estimation flows when qalloc(...) was called without an explicit dim, raising a missing-argument error. This updates the affected manager APIs to match expected qubit-default behavior.

• Scope

  • Updated qalloc signatures in /source/qdk_package/qdk/qre/interop/_cirq.py for:
    • _TypedQubitManager
    • PeakUsageGreedyQubitManager

• Behavioral change

  • Both methods now default dim to 2, allowing call sites that omit dim to allocate standard qubits without error.

• Result

  • Existing callers that pass dim explicitly are unchanged.
  • Callers that invoke qalloc(n) now work as intended.

# before
def qalloc(self, n: int, dim: int, ...)

# after
def qalloc(self, n: int, dim: int = 2, ...)