A 68-year-old female patient was admitted with the chief complaint of 'recurrent cough and sputum production for 30 years, worsened with bilateral lower extremity edema for 1 week'. Physical examination revealed cyanosis of the lips and nail beds, jugular vein distension, fine crackles in both lower lung fields, liver palpable 3 fingerbreadths below the right costal margin, and lower extremity edema. The most likely diagnosis is: