Add WiZ provisioning wizard

lib/features/provisioning/models/wiz_provisioning_environment.dart

@@ -0,0 +1,134 @@
+enum WizProvisioningPermissionStatus { granted, requestable, settingsRequired }
+
+class WizProvisioningEnvironment {
+  final String platform;
+  final int? androidApiLevel;
+  final bool smartPairingSupported;
+  final bool wifiSettingsSupported;
+  final bool appSettingsSupported;
+  final WizProvisioningPermissionStatus permissionStatus;
+  final bool locationServicesEnabled;
+  final bool connectedToWifi;
+  final String? ssid;
+  final String? bssid;
+  final int? frequencyMhz;
+
+  const WizProvisioningEnvironment({
+    required this.platform,
+    required this.androidApiLevel,
+    required this.smartPairingSupported,
+    required this.wifiSettingsSupported,
+    required this.appSettingsSupported,
+    required this.permissionStatus,
+    required this.locationServicesEnabled,
+    required this.connectedToWifi,
+    required this.ssid,
+    required this.bssid,
+    required this.frequencyMhz,
+  });
+
+  factory WizProvisioningEnvironment.unsupported() =>
+      const WizProvisioningEnvironment(
+        platform: 'unknown',
+        androidApiLevel: null,
+        smartPairingSupported: false,
+        wifiSettingsSupported: false,
+        appSettingsSupported: false,
+        permissionStatus: WizProvisioningPermissionStatus.granted,
+        locationServicesEnabled: true,
+        connectedToWifi: false,
+        ssid: null,
+        bssid: null,
+        frequencyMhz: null,
+      );
+
+  factory WizProvisioningEnvironment.fromMap(Map<String, dynamic> raw) {
+    return WizProvisioningEnvironment(
+      platform: raw['platform'] as String? ?? 'unknown',
+      androidApiLevel: (raw['androidApiLevel'] as num?)?.toInt(),
+      smartPairingSupported: raw['smartPairingSupported'] == true,
+      wifiSettingsSupported: raw['wifiSettingsSupported'] == true,
+      appSettingsSupported: raw['appSettingsSupported'] == true,
+      permissionStatus: _permissionStatusFromPlatformValue(
+        raw['permissionStatus'] as String?,
+      ),
+      locationServicesEnabled: raw['locationServicesEnabled'] != false,
+      connectedToWifi: raw['connectedToWifi'] == true,
+      ssid: _normalizeText(raw['ssid']),
+      bssid: _normalizeText(raw['bssid']),
+      frequencyMhz: (raw['frequencyMhz'] as num?)?.toInt(),
+    );
+  }
+
+  bool get permissionsGranted =>
+      permissionStatus == WizProvisioningPermissionStatus.granted;
+
+  bool get permissionRequestable =>
+      permissionStatus == WizProvisioningPermissionStatus.requestable;
+
+  bool get requiresAppSettings =>
+      permissionStatus == WizProvisioningPermissionStatus.settingsRequired;
+
+  bool get isAndroid => platform == 'android';
+
+  bool get isOn24Ghz =>
+      frequencyMhz != null && frequencyMhz! >= 2400 && frequencyMhz! < 2500;
+
+  bool get isLikelyOn5Ghz =>
+      frequencyMhz != null && frequencyMhz! >= 4900 && frequencyMhz! < 6000;
+
+  WizProvisioningEnvironment copyWith({
+    String? platform,
+    int? androidApiLevel,
+    bool? smartPairingSupported,
+    bool? wifiSettingsSupported,
+    bool? appSettingsSupported,
+    WizProvisioningPermissionStatus? permissionStatus,
+    bool? locationServicesEnabled,
+    bool? connectedToWifi,
+    String? ssid,
+    String? bssid,
+    int? frequencyMhz,
+    bool clearWifiInfo = false,
+  }) {
+    return WizProvisioningEnvironment(
+      platform: platform ?? this.platform,
+      androidApiLevel: androidApiLevel ?? this.androidApiLevel,
+      smartPairingSupported:
+          smartPairingSupported ?? this.smartPairingSupported,
+      wifiSettingsSupported:
+          wifiSettingsSupported ?? this.wifiSettingsSupported,
+      appSettingsSupported: appSettingsSupported ?? this.appSettingsSupported,
+      permissionStatus: permissionStatus ?? this.permissionStatus,
+      locationServicesEnabled:
+          locationServicesEnabled ?? this.locationServicesEnabled,
+      connectedToWifi: connectedToWifi ?? this.connectedToWifi,
+      ssid: clearWifiInfo ? null : (ssid ?? this.ssid),
+      bssid: clearWifiInfo ? null : (bssid ?? this.bssid),
+      frequencyMhz: clearWifiInfo ? null : (frequencyMhz ?? this.frequencyMhz),
+    );
+  }
+
+  static WizProvisioningPermissionStatus _permissionStatusFromPlatformValue(
+    String? value,
+  ) {
+    switch (value) {
+      case 'granted':
+        return WizProvisioningPermissionStatus.granted;
+      case 'settings_required':
+        return WizProvisioningPermissionStatus.settingsRequired;
+      case 'requestable':
+      default:
+        return WizProvisioningPermissionStatus.requestable;
+    }
+  }
+
+  static String? _normalizeText(Object? raw) {
+    final text = raw as String?;
+    if (text == null) {
+      return null;
+    }
+    final trimmed = text.trim();
+    return trimmed.isEmpty ? null : trimmed;
+  }
+}