A 38-year-old male presents with low-grade fever and fatigue for 2 years, accompanied by myalgia in limb joints and muscles for the past 6 months, difficulty climbing to the 3rd floor, red rash on upper eyelids, and dysphagia with solid foods. Physical examination reveals periorbital edema, and violaceous erythema on eyelids, nasal bridge, cheeks, distal interphalangeal joints, and periungual skin. The most likely diagnosis is: