2.0.0

• Rewrite the server around a single-threaded event loop built on WaitForMultipleObjects.
• Add configurable listen port support with -p, while keeping the default port at 10000.
• Detect client disconnects via FD_CLOSE and terminate the related child process or job promptly.
• Use job objects for more reliable cleanup, while allowing detached descendants to remain alive until server shutdown when appropriate.
• Expand logging with timestamps, clearer exit-state reporting, and common Windows exception/crash names.
• Add explicit version metadata plus -v and --version output.
• Refresh the project documentation and usage examples.