A 40-year-old female presents with low-grade fever, abdominal distension, oliguria, and lower extremity edema for 2 months. She has a history of hepatitis B. Physical exam: no scleral icterus, abdominal distension, liver and spleen not clearly palpable, shifting dullness present, mild lower extremity edema. Laboratory tests: TBil 21 μmol/L, CB 7.2 μmol/L, ALT 50 U/L, albumin 2.6 g/L, globulin 3.5 g/L, AFP 100 ng/mL. [Hypothetical scenario] If laparoscopy reveals gray-white nodules on the peritoneum and ascitic fluid ADA >45 U/L, the most appropriate treatment would be: