Rendering System Architecture

What changed: Terminal rendering logic refactored into dedicated classes for better separation of concerns

Details:

• Main component class renamed from MC1 to OC1 and simplified
• New dt1 class encapsulates all terminal output rendering logic
• Rendering function ft1() now uses closure pattern (was giQ())
• Layout calculation moved into renderer (was separate calculateLayout() method)
• Frame state (prevFrame, fullStaticOutput) moved to dt1.state
• Buffer class renamed from b41 to f41 (functionally identical)
• Improved code organization and maintainability
• No user-visible changes
• Evidence: OC1 at line 358599, dt1 at line 357561, ft1() at line 357320 in v2.0.10 (was MC1 at line 358357, inline rendering in v2.0.9)