custom pwa and shortcut support

app/lib/features/share_intent/domain/entities/shared_content.dart

@@ -21,37 +21,42 @@ import 'package:fast_equatable/fast_equatable.dart';
 import 'package:weblibre/utils/input_classification.dart';
 
 sealed class SharedContent with FastEquatable {
-  SharedContent();
+  final String? contextId;
 
-  factory SharedContent.parse(String content) {
+  SharedContent({this.contextId});
+
+  factory SharedContent.parse(String content, {String? contextId}) {
     if (parseSharedIntentUrl(content) case final Uri uri) {
-      return SharedUrl(uri);
+      return SharedUrl(uri, contextId: contextId);
     } else {
-      return SharedText(content);
+      return SharedText(content, contextId: contextId);
     }
   }
+
+  @override
+  List<Object?> get hashParameters => [contextId];
 }
 
 final class SharedUrl extends SharedContent {
   final Uri url;
 
-  SharedUrl(this.url);
+  SharedUrl(this.url, {super.contextId});
 
   @override
   String toString() => url.toString();
 
   @override
-  List<Object?> get hashParameters => [url];
+  List<Object?> get hashParameters => [url, ...super.hashParameters];
 }
 
 final class SharedText extends SharedContent {
   final String text;
 
-  SharedText(this.text);
+  SharedText(this.text, {super.contextId});
 
   @override
   String toString() => text;
 
   @override
-  List<Object?> get hashParameters => [text];
+  List<Object?> get hashParameters => [text, ...super.hashParameters];
 }

app/lib/features/share_intent/domain/services/sharing_intent.dart

@@ -45,6 +45,12 @@ final _sharingIntentTransformer =
           _ => null,
         };
 
+        // Extract container context from shortcut intents
+        final contextId =
+            intent.action == 'android.intent.action.VIEW'
+                ? intent.extra['pwa_context_id'] as String?
+                : null;
+
         if (data != null) {
           if (uri_to_file.isUriSupported(data)) {
             var path = data;
@@ -70,17 +76,23 @@ final _sharingIntentTransformer =
               final mimeType = mime.lookupMimeType(file.path);
               switch (mimeType) {
                 case 'application/pdf':
-                  sink.add(ReceivedIntentParameter(path, null));
+                  sink.add(
+                    ReceivedIntentParameter(path, null, contextId: contextId),
+                  );
                 default:
                   logger.w('Unhandled mime type: $mimeType');
               }
             } catch (e) {
               logger.e('Failed to convert URI to file: $e');
               // Fallback: pass the original URI
-              sink.add(ReceivedIntentParameter(data, null));
+              sink.add(
+                ReceivedIntentParameter(data, null, contextId: contextId),
+              );
             }
           } else {
-            sink.add(ReceivedIntentParameter(data, null));
+            sink.add(
+              ReceivedIntentParameter(data, null, contextId: contextId),
+            );
           }
         }
       },