Release v1.0.8

Changes

• Add cross-DSO logger instance sharing via Logger::set_instance() and Logger::clear_instance_override()
  • Enables plugin/shared-library architectures where dynamically-loaded modules should route LOG_* calls to the host application's logger
  • instance() now uses an std::atomic<Logger*> initialized to the library-local singleton, swappable at runtime
  • Thread-safe: atomic acquire-release ordering ensures full visibility of the target logger's initialization
• Add Logger::flush(): blocks until all queued log entries are written, then returns with the logger still running
  • Use before FreeLibrary/dlclose to drain entries whose format-string pointers live in the plugin's code segment