Fix libbox connection

SFT/ApplicationDelegate.swift

@@ -11,6 +11,23 @@ class ApplicationDelegate: NSObject, UIApplicationDelegate {
         options.basePath = FilePath.sharedDirectory.relativePath
         options.workingPath = FilePath.workingDirectory.relativePath
         options.tempPath = FilePath.cacheDirectory.relativePath
+        var port = SharedPreferences.commandServerPort.getBlocking()
+        var secret = SharedPreferences.commandServerSecret.getBlocking()
+        if port == 0 || secret.isEmpty {
+            var error: NSError?
+            LibboxAvailablePort(7990, &port, &error)
+            if let error {
+                port = 7990
+                NSLog("Failed to get available port for control server: \(error.localizedDescription)")
+            }
+            secret = LibboxRandomHex(16)!.value
+            Task {
+                await SharedPreferences.commandServerPort.set(port)
+                await SharedPreferences.commandServerSecret.set(secret)
+            }
+        }
+        options.commandServerListenPort = port
+        options.commandServerSecret = secret
         var error: NSError?
         LibboxSetup(options, &error)
         LibboxSetLocale(Locale.current.identifier)