EV Charging-as-a-Service Market Size, Share & Industry Analysis, By Service Type (Public Charging Services, Fleet Charging Services, Residential Charging Services, Workplace Charging Services, and Highway Charging Services), By Charging Type (AC Charging, DC Fast Charging, Ultra-fast Charging, Wireless Charging, and Battery Swapping), By Business Model (Subscription-based Services, Pay-per-use Services, Leasing Services, Managed Charging Services, and Energy-as-a-Service), By Vehicle Type (Passenger Cars and Commercial Vehicles), and Regional Forecast, 2026-2034