Initial commit: Flutter app + PHP/MySQL backend on Hostinger

Replaces Firebase with a self-hosted PHP/MySQL API served from
winded.prymsolutions.com. Includes full backend (schema, auth, events,
teams, brackets, suggestions, stats, media, file upload) and updated
Flutter repositories and domain models.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/features/profile/application/profile_notifier.dart

@@ -0,0 +1,38 @@
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+import '../../auth/application/auth_notifier.dart';
+import '../../../core/admin/admin_guard.dart';
+import '../domain/user_profile.dart';
+import '../infrastructure/profile_repository.dart';
+
+part 'profile_notifier.g.dart';
+
+/// Live profile of the currently signed-in user. Emits null while loading or
+/// when no user is signed in.
+@riverpod
+Stream<UserProfile?> currentProfile(CurrentProfileRef ref) {
+  final user = ref.watch(authNotifierProvider).valueOrNull;
+  if (user == null) return Stream.value(null);
+  return ref.watch(profileRepositoryProvider).watchProfile(user.uid);
+}
+
+/// Resolves the effective [UserRole] for the current session. Admin status is
+/// determined by email allow-list first (so seed-data admins work before
+/// they've even loaded a profile doc); otherwise the Firestore-stored role is
+/// used, defaulting to [UserRole.viewer] when not logged in.
+@riverpod
+UserRole currentUserRole(CurrentUserRoleRef ref) {
+  final user = ref.watch(authNotifierProvider).valueOrNull;
+  if (user == null) return UserRole.viewer;
+  if (isAdmin(user)) return UserRole.admin;
+  final profile = ref.watch(currentProfileProvider).valueOrNull;
+  if (profile == null) return UserRole.viewer;
+  return profile.role;
+}
+
+/// One-shot lookup of an arbitrary user profile by uid. Used by the public
+/// player profile screen.
+@riverpod
+Future<UserProfile?> profileById(ProfileByIdRef ref, String uid) {
+  return ref.watch(profileRepositoryProvider).getProfile(uid);
+}