- Added comprehensive "Pipeline Abstraction" section to README.md
(for dummies, with step-by-step examples, render-to-texture, and
post-processing).
- Added "Documentation (Markdown)" section to AGENTS.md with the
max-80-cols rule (exceptions for tables/code blocks).
- Applied consistent Markdown styling to AGENTS.md and README.md
(wrapped text at 80 cols, bold, code spans, cleaned duplicates).
- Moved scenes libraries to (cleaned main
CMakeLists.txt significantly).
No behavior change. All follows AGENTS.md conventions.
Updated project description from 'cube timer' to 'OpenGL 3D
renderer with multiple scenes'. Added usage section with CLI
flags and key bindings. Listed both available scenes.
Updated AGENTS.md to include the sphere scene in static
libraries and source layout. Normalized run command to
./build/cuber for cross-platform consistency.