feat: capture normalised bash command heads for the favorite-tools stat

hive-bash-mcp/src/runner.rs

@@ -303,6 +303,10 @@ async fn run_task(mut task: TaskFile, socket: &Path) {
         tracing::warn!(id = %id, error = ?e, "bash_runner: write running state failed");
     }
     refresh_loose_ends();
+    // Best-effort: tally the normalised command head for the /stats
+    // "favorite tools" view. Counted once per execution, regardless of
+    // exit status. Never fails the task.
+    crate::stats::record_command(&task.cmd);
 
     let out_path = paths::task_out(&id);
     let err_path = paths::task_err(&id);