feat(config): switch webPort to URI-style webListen address

- replace integer webPort with MultiProtocolSocketAddress webListen
  (default: http://0.0.0.0:4665) in controller config
- rename Swing UI item to "Web API 监听地址" and validate as full URI
- update WebServer binding to honor configured host and port
- normalize legacy webPort integers to http://0.0.0.0:<port> on load
  and keep JSON API backward compatibility
- update i18n keys in zh_CN and en_US resource bundles
- update root klalb-config.json and AGENTS.md documentation

klalb-config.json

@@ -56,7 +56,7 @@
     "DeviceName": "Device Name",
     "DeviceDescription": "The Description of Device",
     "webUI": true,
-    "webPort": 4665,
+    "webListen": "http://0.0.0.0:4665",
     "NetworkInterfaceExcepts": [],
     "Type": "KLALBController"
   },
@@ -110,4 +110,4 @@
     },
     "Type": "SocketBridge"
   }
-]
+]