Phase 1: Android-Only Cleanup - Code and configuration cleanup

- Clean web-specific comments from hive_service.dart
- Update platform_utils.dart documentation
- Remove web-specific imports from mobile_xtream_providers.dart
- All platform-specific code removed
- Ready for Flutter build validation

lib/core/utils/platform_utils.dart

@@ -1,6 +1,21 @@
-/// Platform utilities - conditional export
-/// Uses web implementation on web, stub on other platforms
+/// Platform utilities for Android
+/// 
+/// These utilities handle Android-specific behavior.
+/// Android doesn't have same-origin policy restrictions like web platforms.
 library;
 
-export 'platform_utils_stub.dart'
-    if (dart.library.html) 'platform_utils_web.dart';
+/// Check if we're running on HTTPS (not applicable for Android)
+/// Android apps don't have same-origin restrictions, so we always return false
+bool isHttps() {
+  // Android doesn't have same-origin policy restrictions
+  // So we never need the HTTPS bridge proxy
+  return false;
+}
+
+/// Get the window origin (not applicable for Android)
+/// Android doesn't have a "window" concept, returns empty string
+String getWindowOrigin() {
+  // Android doesn't have a window origin
+  // Returns empty string as it's never used with isHttps() == false
+  return '';
+}