Lung Cancer Market Size & Forecasts 2026-2035, By Segments (Diagnostics and Therapeutics, Indication, End Use), Growth Opportunities, Innovation Landscape, Regulatory Shifts, Strategic Regional Insights (U.S., Japan, China, South Korea, UK, Germany, France), and Competitive Dynamics (Roche, Merck, AstraZeneca, Bristol-Myers Squibb, Pfizer)