A 28-year-old woman from Delhi presents with primary infertility of 3 years duration. She has regular menstrual cycles (28–30 days) with normal flow. Her husband's semen analysis is normal. On examination, she has a BMI of 32 kg/m², hirsutism on the face and chest, and acne. Pelvic ultrasound shows multiple small follicles arranged peripherally in both ovaries with increased ovarian stroma. FSH and LH levels are elevated with an LH:FSH ratio of 3:1. What is the most likely diagnosis?