A 68-year-old woman with a history of severe aortic stenosis (valve area 0.8 cm²), left ventricular hypertrophy, and chronic kidney disease (eGFR 35 mL/min/1.73m²) is scheduled for urgent femoral artery angiography. She is on digoxin, furosemide, and lisinopril. Her current BP is 160/95 mmHg, HR 88/min, and she has signs of pulmonary edema. She is ASA IV. Which induction agent is most appropriate for this high-risk patient?