Standing yoga for bone & balance

I'm a woman in my 50s, new to yoga, easing through menopause. I want to protect my bones and improve balance and mobility, with no jumping or floor-pounding impact. Write me a 25-minute standing weight-bearing yoga routine I can do barefoot near a wall or sturdy chair for support. Structure it as: - Warm-up (4 min): gentle neck rolls, shoulder rolls, cat-cow on hands and knees, and standing side bends, each for 30-45 seconds. - Main standing sequence (about 18 min), emphasising poses that put weight through the legs and hips and challenge balance. Include Mountain pose, Chair pose, Warrior I, Warrior II, Triangle, Tree pose, and a standing single-leg balance. For each pose give me a hold time of 20-40 seconds per side, with the wall or chair available for balance, and tell me to keep my spine long rather than rounding forward. - Cool-down (3 min): standing forward fold with soft knees, gentle standing twist, each held 30 seconds. Keep cues simple, tell me how to scale each pose easier or harder, and remind me to breathe steadily. Avoid any poses that need me to get up and down off the floor repeatedly or that load my spine in deep forward rounding.