A 68-year-old man with hypertension presents for follow-up after an episode of atrial fibrillation detected on ambulatory monitoring (paroxysmal AF). He is asymptomatic. BMI 27 kg/m², BP 128/78 mm Hg, creatinine 1.0 mg/dL (eGFR 80 mL/min/1.73 m²), weight 82 kg. His CHA₂DS₂‑VASc score is 2 (age 65-74 = 1; hypertension = 1). What is the most appropriate next step?