Add WiZ provisioning wizard

lib/features/provisioning/models/wiz_provisioning_timing.dart

@@ -0,0 +1,15 @@
+class WizProvisioningTiming {
+  final Duration provisioningTimeout;
+  final Duration settleAfterFirstResponse;
+  final Duration initialRescanDelay;
+  final Duration retryRescanDelay;
+  final int maxRescanAttempts;
+
+  const WizProvisioningTiming({
+    this.provisioningTimeout = const Duration(seconds: 45),
+    this.settleAfterFirstResponse = const Duration(seconds: 3),
+    this.initialRescanDelay = const Duration(seconds: 3),
+    this.retryRescanDelay = const Duration(seconds: 4),
+    this.maxRescanAttempts = 3,
+  });
+}