Feature/jazz n 2 n

[paulQM]

Summary

Adds two new CZ amplitude calibration nodes from arXiv:2402.18926v3 (Appendix I.1, Fig. 13), together with shared analysis/plotting utilities:

• 33b JAZZ-N — Refocused echo train with N = 4k + 1; measures target-qubit P_|1> vs CZ amplitude scale. Intended as a high-resolution amplitude calibration after a coarse estimate from 32a/32b.
• 33c JAZZ2-N — Two-qubit superposition variant with N = 2k; measures joint P_|00> on both qubits. Sensitive to both conditional phase rotation angle and leakage

Both nodes sweep amplitude scale around the stored CZ amplitude, average over the repetition axis, and fit a sinc model to extract the optimal flux_pulse_qubit.amplitude. They support all standard CZ gate macros (cz_unipolar, cz_flattop, cz_bipolar, cz_flattop_erf, cz_SNZ).

Changes

Area	Files
JAZZ-N utilities	calibration_utils/cz_jazz_n/ (analysis, parameters, plotting)
JAZZ2-N utilities	calibration_utils/cz_jazz2_n/ (analysis, parameters, plotting)
Calibration nodes	33b_JAZZ-N.py, 33c_JAZZ2-N.py

[Deepakkhurrana]

I have pushed some commits to

• align plotting and naming logic with previous nodes
• description updates to capture the advantage of these two nodes for example over 32b
• Renamed them: since they tune qubit flux, they should belong under 32.

After these changes LGTM

[HuanQM]

LGTM overall. Minor point: There is one unused file included in this PR.

[Deepakkhurrana]

@HuanQM the unused file have been removed