Document optional syncPaths and how retiring a mod reaches clients
Configuration: document baseFiles, per-path headless, and the sync model Adds the "How ModSync decides what you get" overview, the baseFiles section covering backup/restore and why a hand-installed mod gets locked, and the Tarkov DLSS 4.5 Graphics.ini pitfall. Documents the headless per-syncPath gate and expands the exclusions/headlessIncludes notes.