Address code review feedback - add TETHERING_WIFI constant and improve comments

Co-authored-by: jambl3r <54366245+jambl3r@users.noreply.github.com>

Author: Copilot

sysbridge/src/main/java/io/github/sds100/keymapper/sysbridge/service/SystemBridge.kt

@@ -82,6 +82,7 @@ internal class SystemBridge : ISystemBridge.Stub() {
 
         private const val KEYMAPPER_CHECK_INTERVAL_MS = 60 * 1000L // 1 minute
         private const val DATA_ENABLED_REASON_USER: Int = 0
+        private const val TETHERING_WIFI: Int = 0
 
         @JvmStatic
         fun main(args: Array<String>) {
@@ -674,15 +675,15 @@ internal class SystemBridge : ISystemBridge.Stub() {
         }
 
         if (enable) {
-            // Type 0 = TETHERING_WIFI
             connectivityManager.startTethering(
-                0, // type
+                TETHERING_WIFI,
                 null, // ResultReceiver
                 false, // showProvisioningUi
                 processPackageName, // callerPkg
             )
         } else {
-            connectivityManager.stopTethering(0) // TETHERING_WIFI
+            connectivityManager.stopTethering(TETHERING_WIFI)
         }
     }
+    }
 }

system/src/main/java/io/github/sds100/keymapper/system/network/AndroidNetworkAdapter.kt

@@ -200,7 +200,9 @@ class AndroidNetworkAdapter @Inject constructor(
     }
 
     override fun isHotspotEnabled(): Boolean {
-        // This requires reflection or system bridge
+        // TODO: Implement hotspot state detection using reflection or system bridge.
+        // For now, returning false means toggle action will always attempt to enable.
+        // This is acceptable for the initial implementation.
         return false
     }