Refactor module build targets into static libraries

[floke75]

Summary

• refactor the bespoke module helper to emit static libraries with proper PUBLIC usage requirements and PIC
• declare the required module dependencies for the python bindings and rive decoders modules
• document the remediation and remaining SDL2 prerequisite in the build analysis report

Testing

• cmake -S . -B build -DYUP_ENABLE_AUDIO_MODULES=0
• cmake --build build --target yup_python -- -j$(nproc) (fails: missing SDL2 development headers in the container)

---

https://chatgpt.com/codex/tasks/task_e_68d858200ed483298425b216f87bf8f6