Global Allergy Diagnostics Market Size, Share & Healthcare Analysis Product & Service (Consumables, Instruments, Services), Test Type (In Vivo, In Vitro), Allergen (Inhaled Allergens, Food Allergens, Drug Allergens, Other Allgerens), End-user (Diagnostic Laboratories, Hospital-based Laboratories, Academic Research Institutes), Rising Allergy Burden, Precision Diagnostics Trends & Forecast 2025–2034