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/test/company/p1_cleanup_test.dart

@@ -0,0 +1,30 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:openim_common/src/res/lang/zh_CN.dart';
+import 'package:openim_common/src/widgets/chat/chat_location_view.dart';
+
+void main() {
+  test('用户可见通话文案不再出现视频通话或音视频通话', () {
+    for (final entry in zh_CN.entries) {
+      expect(entry.value.contains('视频通话'), isFalse, reason: '${entry.key}=${entry.value}');
+      expect(entry.value.contains('音视频通话'), isFalse, reason: '${entry.key}=${entry.value}');
+    }
+    expect(zh_CN['toolboxCall'], '语音通话');
+    expect(zh_CN['audioAndVideoCall'], '语音通话');
+    expect(zh_CN['video'], '视频');
+  });
+
+  test('历史位置描述损坏时仍能解析成只读占位，不抛异常', () {
+    final ok = LocationPreviewData.parse('{"url":"http://x","name":"公司门口","addr":"一楼大厅"}');
+    expect(ok.name, '公司门口');
+    expect(ok.addr, '一楼大厅');
+    expect(ok.url, 'http://x');
+
+    expect(() => LocationPreviewData.parse('{not-json'), returnsNormally);
+    expect(() => LocationPreviewData.parse(null), returnsNormally);
+    expect(() => LocationPreviewData.parse(''), returnsNormally);
+
+    final broken = LocationPreviewData.parse('{not-json');
+    expect(broken.url, isEmpty);
+    expect(broken.name, isNotEmpty);
+  });
+}