MVU refactor (premflow)

When to use

• User attaches or references an implementation plan for CMake + elomaxz MVU
• Refactoring premflow model/view/update structure
• Integrating patterns from elomaxz repo

Steps

1. Read the attached plan and existing CMakeLists.txt, model, and app entry points.
2. Grep for symbols mentioned in the plan before moving files.
3. Implement in small steps: CMake → headers → .c → build after each logical chunk.
4. Run build; fix compiler errors before next step.
5. Update README/license only after core build passes.

Constraints