Upper/lower tension build (6 weeks)

Write me a 6-week upper/lower hypertrophy program, 4 days a week (Upper A / Lower A / Upper B / Lower B), for an intermediate lifter. Focus on mechanical tension: controlled 2-3s eccentrics, full range of motion, and taking most working sets to 1-3 reps in reserve (RIR). Per muscle group I want roughly 12-18 hard sets per week. For every exercise give: sets x reps, rest in seconds, and a target RIR or RPE. Use mostly 6-12 reps for compounds and 10-15 for isolations. Include compound anchors (squat or leg press, Romanian deadlift, bench press, overhead press, rows, pulldowns/pull-ups) plus targeted isolation work (curls, triceps, lateral raises, leg curls, calves). Start each session with a warm-up: 5 min easy cardio, then 2-3 ramp-up sets on the first compound building to my working load. Rest ~2-3 min on heavy compounds and ~60-90s on isolations. Give me a simple progression rule: when I hit the top of the rep range at my target RIR on all sets, add load next session. Build in a lighter deload in week 6 (reduce sets ~40%, keep weight). Lay it out as a weekly table I can follow.