luci-mod-status: add dynamic ethernet devices

Extend port status view to include dynamically detected
ethernet interfaces (e.g. USB adapters).

Devices are merged into the existing port list if not
already present. Loopback interfaces are excluded.

Filter against /sys/class/net to avoid stale entries
after device removal.

Tested on:
- GL.iNet GL-MT6000
- OpenWrt 25.12.1
- Apple USB ethernet adapters (100 Mbps and 2.5 Gbps)

Verified link state changes and hotplug (add/remove).

Signed-off-by: Karsten Hoehn <git@karstenhoehn.net>

Author: KarstenH792

modules/luci-mod-status/htdocs/luci-static/resources/view/status/include/29_ports.js

@@ -412,13 +412,18 @@ return baseclass.extend({
 				});
 			});
 
-			return Promise.all(psePromises).then((pseResults) => {
+			return Promise.all([
+    			Promise.all(psePromises),
+			    L.resolveDefault(fs.list('/sys/class/net'), [])
+			]).then(([pseResults, devs]) => {
 				const pseMap = {};
 				pseResults.forEach((r) => {
 					if (r.pse)
 						pseMap[r.name] = r.pse;
 				});
-				data.push(pseMap);
+				const present = (devs || []).map(d => d.name || d);
+			    data.push(pseMap);
+			    data.push(present);
 				return data;
 			});
 		});
@@ -462,6 +467,23 @@ return baseclass.extend({
 			}
 		}
 
+		const presentDevices = new Set(data[6] || []);
+		for (const dev in port_map) {
+		    if (dev === 'lo')
+		        continue;
+		
+		    if (!presentDevices.has(dev))
+		        continue;
+		
+		    if (!known_ports.find(p => p.device === dev)) {
+		        known_ports.push({
+		            role: 'extra',
+		            device: dev,
+		            netdev: network.instantiateDevice(dev)
+		        });
+		    }
+		}
+
 		known_ports.sort(function(a, b) {
 			return L.naturalCompare(a.device, b.device);
 		});