Build and verify shared library targets for projectM

[nutzclub-dev]

Verified codebase for conflict markers and successfully built shared library targets libprojectM-4 and libprojectM-4-playlist using CMake. Validated runtime pipeline execution via headless benchmark suite.

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PR created automatically by Jules for task 8344772766170796306 started by @codeboxqc

[google-labs-jules]

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