Automotive Convertible Top Market Size, Share Demand Report By Roof Type (Soft-Top Convertible Systems, Retractable Hardtop Systems), By Vehicle Type (Luxury Passenger Vehicles, Sports Cars, Electric Luxury Convertibles), By Operation Type (Manual Convertible Roof Systems, Automatic Convertible Roof Systems, Remote-Controlled Convertible Roof Systems), By Sales Channel (OEMs, Aftermarket), By Region & Segment Forecasts, 2026–2034