✨ Better link previewing

lib/pods/link_preview.dart

@@ -0,0 +1,28 @@
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:island/models/embed.dart';
+import 'package:island/pods/network.dart';
+
+part 'link_preview.g.dart';
+
+@riverpod
+class LinkPreview extends _$LinkPreview {
+  @override
+  Future<SnScrappedLink?> build(String url) async {
+    final client = ref.read(apiClientProvider);
+
+    try {
+      final response = await client.get(
+        '/scrap/link',
+        queryParameters: {'url': url},
+      );
+
+      if (response.statusCode == 200 && response.data != null) {
+        return SnScrappedLink.fromJson(response.data);
+      }
+      return null;
+    } catch (e) {
+      // Return null on error to show fallback UI
+      return null;
+    }
+  }
+}