fix: register browser/computer capabilities after controller init

package-hermes-node-agent/hermes_node_agent.py

@@ -544,14 +544,14 @@ class NodeAgent:
     def __init__(self, config_path: Optional[str] = None):
         self.config = self._load_config(config_path)
         self.executor = make_executor(self.config)
-        self.capabilities = self._detect_capabilities()
         self.computer = make_computer_controller(self.config)
         self.browser = None
-        if self.capabilities.get('enable_browser') and HAS_BROWSER:
+        if self.config.get('enable_browser') and HAS_BROWSER:
             try:
                 self.browser = BrowserController()
             except Exception as e:
                 _log_init_warning('browser_control', e)
+        self.capabilities = self._detect_capabilities()
 
     def _load_config(self, path: Optional[str]) -> Dict[str, Any]:
         """Load node configuration from JSON."""