Create data/train.csv

data/train.csv

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+id,hardware_class,physical_error_rate,logical_error_rate,stabilizer_x_rate,stabilizer_z_rate,t2_estimate_us,cross_layer_correlation,calibration_delta,noise_index,coupling_strength_index,expected_coupling_band,anomaly_score,confidence_score,notes,constraints,gold_checklist
+QECC-001,superconducting,0.012,0.003,0.45,0.41,72,0.82,0.03,0.22,0.79,"0.75-0.90",0.08,0.86,"stable coupling","<=250 words","strength+band+confidence"
+QECC-002,ion_trap,0.006,0.0015,0.32,0.29,140,0.88,0.02,0.15,0.84,"0.80-0.95",0.05,0.89,"strong baseline","<=250 words","strength+band+confidence"
+QECC-003,superconducting,0.018,0.006,0.58,0.60,55,0.68,0.05,0.31,0.63,"0.70-0.88",0.22,0.78,"weakening correlation","<=250 words","strength+band+confidence"
+QECC-004,neutral_atom,0.010,0.0028,0.39,0.37,95,0.80,0.03,0.19,0.76,"0.72-0.90",0.11,0.82,"within band","<=250 words","strength+band+confidence"
+QECC-005,photonic,0.022,0.009,0.66,0.62,40,0.61,0.07,0.42,0.57,"0.68-0.85",0.31,0.74,"early drift","<=250 words","strength+band+confidence"
+QECC-006,superconducting,0.014,0.004,0.49,0.47,70,0.78,0.03,0.24,0.75,"0.72-0.90",0.12,0.83,"stable but watch","<=250 words","strength+band+confidence"