Dumbbell upper/lower plan (8 weeks)

I'm a beginner training at home with only adjustable dumbbells. Write me an 8-week dumbbell-only muscle-building plan on an upper/lower split, 4 days a week (Upper A, Lower A, Upper B, Lower B), each session about 45 minutes. Every session opens with a 5-minute warm-up. Upper days use floor/bench press, shoulder press, single-arm rows, flyes, lateral raises, curls, and triceps extensions; lower days use goblet squats, Romanian deadlifts, reverse lunges, calf raises, and a core hold. Prescribe 3 sets of 8-12 reps per exercise at an RPE of 7-8 (2-3 reps in reserve), with 90 seconds rest. Build in progression: each week, when I can complete all sets at the top of the rep range with 2 reps to spare, add a small load increase or one more rep, and include a lighter deload in week 5. Give me the weekly schedule as a table plus simple rules for when to add weight.