Fix installed tool command probes

crates/clusterflux-node/src/main.rs

@@ -8,5 +8,34 @@ mod task_artifacts;
 mod task_reports;
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
+    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-node {}", env!("CARGO_PKG_VERSION"));
+            return Ok(());
+        }
+        [flag] if matches!(flag.as_str(), "--help" | "-h") => {
+            println!(
+                "Clusterflux node worker.\n\n\
+                 Usage: clusterflux-node --coordinator <URL> [OPTIONS]\n\n\
+                 Options:\n  \
+                   --coordinator <URL>\n  \
+                   --tenant <TENANT>                   [default: tenant]\n  \
+                   --project-id <PROJECT>              [default: project]\n  \
+                   --node <NODE>                       [default: node]\n  \
+                   --project-root <PATH>\n  \
+                   --enrollment-grant <GRANT>\n  \
+                   --public-key <KEY>\n  \
+                   --worker\n  \
+                   --emit-ready\n  \
+                   --control-poll-ms <MILLISECONDS>\n  \
+                   --assignment-poll-ms <MILLISECONDS> [default: 500]\n  \
+                   -h, --help\n  \
+                   -V, --version"
+            );
+            return Ok(());
+        }
+        _ => {}
+    }
     daemon::run()
 }