Global Exercise and Stationary Bike Market Size, Share & Demand Report By Product Type (Spin/Indoor Cycling Bikes, Upright Bikes, Recumbent Bikes, Smart/Connected Bikes, Dual-Action Bikes), By Application (Home/Residential, Commercial Gyms, Corporate Wellness, Rehabilitation), By Distribution Channel (Online, Specialty Stores, D2C, Department Stores), By Region & Segment Forecasts, 2025–2030