style: adjust constructor formatting and update command path in Cursor IDE setup

- Reformatted the constructor method for consistency.
- Updated the command path syntax in the Cursor IDE setup to use a more standard format.

tools/cli/installers/lib/ide/cursor.js

@@ -161,7 +161,7 @@ ${launcherContent}
 
     return {
       path: launcherPath,
-      command: `/bmad:custom:agents:${agentName}`,
+      command: `/bmad/custom/agents/${agentName}`,
     };
   }
 }