Fix installed tool command probes

crates/clusterflux-dap/src/main.rs

@@ -36,6 +36,26 @@ use demo_backend::{LINUX_THREAD, MAIN_THREAD, PACKAGE_THREAD, WINDOWS_THREAD};
 use virtual_model::{process_id, RuntimeBackend};
 
 fn main() -> Result<()> {
+    let raw_args = std::env::args().skip(1).collect::<Vec<_>>();
+    match raw_args.as_slice() {
+        [flag] if matches!(flag.as_str(), "--version" | "-V") => {
+            println!("clusterflux-debug-dap {}", env!("CARGO_PKG_VERSION"));
+            return Ok(());
+        }
+        [flag] if matches!(flag.as_str(), "--help" | "-h") => {
+            println!(
+                "Clusterflux Debug Adapter Protocol server.\n\n\
+                 Usage: clusterflux-debug-dap\n\n\
+                 The adapter communicates over standard input and output.\n\n\
+                 Options:\n  \
+                   -h, --help\n  \
+                   -V, --version"
+            );
+            return Ok(());
+        }
+        [] => {}
+        [argument, ..] => anyhow::bail!("unknown argument: {argument}"),
+    }
     adapter::run_adapter()
 }