fix: resolve compilation errors

- Add flutter_riverpod dependency to pubspec.yaml
- Rename sealed class subtypes (Idle, Loading, Done) as public
- Update RecyclingGuideScreen to use type checks instead of pattern matching
- Fix CardThemeData type in app_theme.dart
- Keep withOpacity (warnings only, not errors)

.claude/settings.local.json

@@ -9,7 +9,13 @@
       "Bash(rm -rf lib/src)",
       "Bash(cp -r basura_app/lib/* lib/)",
       "Bash(git checkout *)",
-      "Bash(git add *)"
+      "Bash(git add *)",
+      "Bash(git commit *)",
+      "Bash(git push *)",
+      "mcp__ide__getDiagnostics",
+      "Read(//mnt/c/Users/Wallt/StudioProjects/**)",
+      "Bash(flutter pub *)",
+      "Bash(flutter analyze *)"
     ]
   }
 }

lib/features/recycling_guide/presentation/providers/recycling_provider.dart

@@ -45,20 +45,20 @@ final recyclingSearchProvider =
 sealed class RecyclingSearchState {
   const RecyclingSearchState();
 
-  const factory RecyclingSearchState.idle() = _Idle;
+  const factory RecyclingSearchState.idle() = Idle;
-  const factory RecyclingSearchState.loading() = _Loading;
+  const factory RecyclingSearchState.loading() = Loading;
-  const factory RecyclingSearchState.done(List<SearchResult> results) = _Done;
+  const factory RecyclingSearchState.done(List<SearchResult> results) = Done;
 }
 
-class _Idle extends RecyclingSearchState {
+class Idle extends RecyclingSearchState {
-  const _Idle();
+  const Idle();
 }
 
-class _Loading extends RecyclingSearchState {
+class Loading extends RecyclingSearchState {
-  const _Loading();
+  const Loading();
 }
 
-class _Done extends RecyclingSearchState {
+class Done extends RecyclingSearchState {
   final List<SearchResult> results;
-  const _Done(this.results);
+  const Done(this.results);
 }

lib/features/recycling_guide/presentation/screens/recycling_guide_screen.dart

@@ -137,10 +137,13 @@ class _SearchResults extends ConsumerWidget {
   Widget build(BuildContext context, WidgetRef ref) {
     final estado = ref.watch(recyclingSearchProvider);
 
-    return switch (estado) {
+    if (estado is Idle) {
-      _Idle()    => const SizedBox.shrink(),
+      return const SizedBox.shrink();
-      _Loading() => const Center(child: CircularProgressIndicator()),
+    } else if (estado is Loading) {
-      _Done(results: final r) when r.isEmpty => Center(
+      return const Center(child: CircularProgressIndicator());
+    } else if (estado is Done) {
+      if (estado.results.isEmpty) {
+        return Center(
           child: Column(
             mainAxisSize: MainAxisSize.min,
             children: [
@@ -152,13 +155,14 @@ class _SearchResults extends ConsumerWidget {
               ),
             ],
           ),
-        ),
+        );
-      _Done(results: final r) => ListView.builder(
+      }
-          padding: const EdgeInsets.symmetric(vertical: 8),
+      return ListView.builder(
-          itemCount: r.length,
+        padding: const EdgeInsets.symmetric(vertical: 8),
-          itemBuilder: (_, i) => SearchResultTile(resultado: r[i]),
+        itemCount: estado.results.length,
-        ),
+        itemBuilder: (_, i) => SearchResultTile(resultado: estado.results[i]),
-      _ => const SizedBox.shrink(),
+      );
-    };
+    }
+    return const SizedBox.shrink();
   }
 }

lib/theme/app_theme.dart

@@ -39,7 +39,7 @@ class AppTheme {
             color: Colors.white,
           ),
         ),
-        cardTheme: CardTheme(
+        cardTheme: CardThemeData(
           color: surfaceColor,
           elevation: 2,
           shape: RoundedRectangleBorder(

pubspec.lock

@@ -70,6 +70,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.0.0"
+  flutter_riverpod:
+    dependency: "direct main"
+    description:
+      name: flutter_riverpod
+      sha256: "9532ee6db4a943a1ed8383072a2e3eeda041db5657cdf6d2acecf3c21ecbe7e1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.6.1"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -139,6 +147,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.1"
+  riverpod:
+    dependency: transitive
+    description:
+      name: riverpod
+      sha256: "59062512288d3056b2321804332a13ffdd1bf16df70dcc8e506e411280a72959"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.6.1"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -160,6 +176,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.12.1"
+  state_notifier:
+    dependency: transitive
+    description:
+      name: state_notifier
+      sha256: b8677376aa54f2d7c58280d5a007f9e8774f1968d1fb1c096adcb4792fba29bb
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   stream_channel:
     dependency: transitive
     description:

pubspec.yaml

@@ -34,6 +34,7 @@ dependencies:
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.8
+  flutter_riverpod: ^2.4.0
 
 dev_dependencies:
   flutter_test: