A 28-year-old woman from Odisha presents with multiple ill-defined hypopigmented and erythematous patches distributed symmetrically over her face, trunk, and extremities for 8 months. Slit-skin smear from an active lesion shows 4+ acid-fast bacilli. Lepromin test is negative. Nerve palpation reveals thickening of the ulnar and posterior tibial nerves bilaterally. She has no signs of lepra reaction. What is the most likely classification of her leprosy?