Global Digital Pen Market Size, Share & Demand Report By Technology Type (Active Digital Pens, Passive Stylus Pens, Smart Pens with Optical Tracking, Electromagnetic Resonance Pens, Bluetooth-Enabled Digital Pens), By Application (Writing & Note-taking, Drawing & Graphic Design, Education & E-learning, Business & Documentation, Healthcare Documentation, Industrial Design & Engineering), By End User (Consumer Use, Educational Institutions, Enterprises, Healthcare Institutions, Creative Professionals), By Region & Segment Forecasts, 2026–2031