fix(mobile-next): 移除悬浮窗申请与位置发送，通话文案改为语音通话

同步完成后不再索取 SYSTEM_ALERT_WINDOW，去掉旧浮窗服务声明和定位权限/发送入口；历史位置消息仍只读展示。

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

mobile-next/openim_common/lib/src/utils/utils.dart

@@ -850,8 +850,7 @@ class IMUtils {
           var customData = map['data'];
           switch (customType) {
             case CustomMessageType.call:
-              var type = map['data']['type'];
-              content = '[${type == 'video' ? StrRes.callVideo : StrRes.callVoice}]';
+              content = '[${StrRes.callVoice}]';
               break;
             case CustomMessageType.emoji:
               content = '[${StrRes.emoji}]';
@@ -1326,15 +1325,19 @@ class IMUtils {
   }
 
   static void previewLocation(Message message) {
-    var location = message.locationElem;
-    Map detail = json.decode(location!.description!);
+    final location = message.locationElem;
+    if (location == null) {
+      IMViews.showToast(StrRes.location);
+      return;
+    }
+    final detail = LocationPreviewData.parse(location.description);
     Logger.print('previewLocation ${location.latitude}  ${location.longitude}');
     Get.to(
       () => MapView(
-        latitude: location.latitude!,
-        longitude: location.longitude!,
-        address1: detail['name'],
-        address2: detail['addr'],
+        latitude: location.latitude ?? 0,
+        longitude: location.longitude ?? 0,
+        address1: detail.name,
+        address2: detail.addr,
       ),
       transition: Transition.cupertino,
       popGesture: true,