Global Scoliosis Traction Chair (STC) Market Size, Share & Demand Report By Product Type (Manual Chairs, Motorized/Electric Chairs, Hybrid Chairs), By Application (Clinical/Medical, Home Care, Research & Academic), By End-User (Hospitals & Clinics, Physiotherapy Centers, Home Users, Research Institutes), By Age Group (Pediatric, Adult, Geriatric), By Distribution Channel & Region Forecasts, 2025–2030