Src tree reorganize

When to use

• User wants sources moved from repo root into src/ (or similar tidy-up)
• "make the project neat", scattered .c / .h at top level
• After MVU refactor when file layout is still messy

Steps

1. Glob all *.c, *.h, and CMakeLists.txt under {REPO_ROOT}.
2. Grep includes and add_executable / target_sources references.
3. Propose target layout (e.g. src/, include/) — minimal moves per step.
4. Write / StrReplace paths in CMake and #include lines together.
5. Shell cmake --build (or project build command) after each batch of moves.
6. Summarize what moved and what still references old paths.

Constraints