todos os placholders da tela de alunos resolvidos

lib/core/models/achievement.dart

@@ -185,22 +185,6 @@ class SystemAchievements {
       isActive: true,
       createdAt: DateTime.now(),
     ),
-    Achievement(
-      id: 'first_quiz',
-      name: 'Primeiro Passo',
-      description: 'Complete seu primeiro quiz',
-      icon: 'emoji_events',
-      category: 'quiz',
-      requirements: AchievementRequirement(
-        type: 'quiz_completion',
-        value: 1,
-        operator: '>=',
-      ),
-      points: 10,
-      rarity: 'common',
-      isActive: true,
-      createdAt: DateTime.now(),
-    ),
     Achievement(
       id: 'perfect_score',
       name: 'Perfeição',

lib/core/services/gamification_service.dart

@@ -352,73 +352,6 @@ class GamificationService {
     }
   }
 
-  /// Método público para inicializar dados de gamificação (para testes)
-  static Future<void> initializeGamificationData(String userId) async {
-    try {
-      final userStats = await getUserStats(userId);
-      if (userStats == null) {
-        await _createInitialUserStats(userId);
-        Logger.info('Gamification data initialized for user $userId');
-      }
-    } catch (e) {
-      Logger.error('Error initializing gamification data: $e');
-    }
-  }
-
-  /// Método público para simular quiz completion (para testes)
-  static Future<void> simulateQuizCompletion(String userId, {
-    required int score,
-    required int totalQuestions,
-    required String materialName,
-  }) async {
-    Logger.info('=== SIMULATING QUIZ COMPLETION ===');
-    Logger.info('User: $userId');
-    Logger.info('Score: $score/$totalQuestions');
-    Logger.info('Material: $materialName');
-    
-    await recordQuizActivity(
-      userId,
-      score: score,
-      totalQuestions: totalQuestions,
-      materialName: materialName,
-    );
-    
-    // Verificar estado após simulação
-    await debugUserStats(userId);
-  }
-
-  /// Método de debugging para verificar estado completo do usuário
-  static Future<void> debugUserStats(String userId) async {
-    try {
-      Logger.info('=== DEBUGGING USER STATS ===');
-      
-      final userStats = await getUserStats(userId);
-      if (userStats == null) {
-        Logger.error('User stats not found for $userId');
-        return;
-      }
-      
-      Logger.info('Current Streak: ${userStats.currentStreak}');
-      Logger.info('Longest Streak: ${userStats.longestStreak}');
-      Logger.info('Total Study Time: ${userStats.totalStudyTime}');
-      Logger.info('Weekly Study Time: ${userStats.weeklyStudyTime}');
-      Logger.info('Monthly Study Time: ${userStats.monthlyStudyTime}');
-      Logger.info('Mastered Concepts: ${userStats.masteredConcepts.length}');
-      Logger.info('Unlocked Achievements: ${userStats.unlockedAchievements.length}');
-      
-      for (final concept in userStats.masteredConcepts) {
-        Logger.info('  - Concept: ${concept.conceptName}, Level: ${concept.masteryLevel}');
-      }
-      
-      for (final achievement in userStats.unlockedAchievements) {
-        Logger.info('  - Achievement: ${achievement.achievementId}, Unlocked: ${achievement.unlockedAt}');
-      }
-      
-      Logger.info('=== END DEBUG ===');
-    } catch (e) {
-      Logger.error('Error debugging user stats: $e');
-    }
-  }
   
   /// Métodos privados
 
@@ -626,6 +559,7 @@ class GamificationService {
                  achievement.requirements.checkCondition(completedQuizzes)) {
         await _unlockAchievement(userId, achievement.id);
       } else if (achievement.category == 'quiz' && achievement.requirements.type == 'quiz_completion' &&
+                 achievement.id == 'first_quiz' &&
                  achievement.requirements.checkCondition(1)) {
         await _unlockAchievement(userId, achievement.id);
       } else if (achievement.category == 'concept' && achievement.requirements.type == 'concepts_mastered' &&
@@ -637,21 +571,8 @@ class GamificationService {
     }
     
     Logger.info('=== END CHECKING QUIZ ACHIEVEMENTS ===');
-    // Verificar conquistas genéricas de número de quizzes
-    await _checkQuizCountAchievements(userId, completedQuizzes);
   }
 
-  static Future<void> _checkQuizCountAchievements(String userId, int completedQuizzes) async {
-    final achievements = await getAvailableAchievements();
-    final quizCountAchievements = achievements.where((a) => a.category == 'quiz_count');
-
-    for (final achievement in quizCountAchievements) {
-      if (achievement.requirements.type == 'quiz_completion' &&
-          achievement.requirements.checkCondition(completedQuizzes)) {
-        await _unlockAchievement(userId, achievement.id);
-      }
-    }
-  }
   
   static Future<void> _unlockAchievement(String userId, String achievementId) async {
     try {

lib/features/achievements/presentation/pages/student_achievements_page.dart

@@ -142,60 +142,6 @@ class _StudentAchievementsPageState extends State<StudentAchievementsPage> {
                 ),
               ),
 
-              // Debug buttons (remover em produção)
-              if (!const bool.fromEnvironment('dart.vm.product')) ...[
-                Container(
-                  margin: const EdgeInsets.all(16),
-                  child: Row(
-                    children: [
-                      Expanded(
-                        child: ElevatedButton(
-                          onPressed: () async {
-                            final user = AuthService.currentUser;
-                            if (user != null) {
-                              await GamificationService.initializeGamificationData(user.uid);
-                              _loadAchievements();
-                            }
-                          },
-                          child: const Text('Inicializar Dados'),
-                        ),
-                      ),
-                      const SizedBox(width: 8),
-                      Expanded(
-                        child: ElevatedButton(
-                          onPressed: () async {
-                            final user = AuthService.currentUser;
-                            if (user != null) {
-                              await GamificationService.simulateQuizCompletion(
-                                user.uid,
-                                score: 8,
-                                totalQuestions: 10,
-                                materialName: 'Matemática Básica',
-                              );
-                              _loadAchievements();
-                            }
-                          },
-                          child: const Text('Simular Quiz'),
-                        ),
-                      ),
-                      const SizedBox(width: 8),
-                      Expanded(
-                        child: ElevatedButton(
-                          onPressed: () async {
-                            final user = AuthService.currentUser;
-                            if (user != null) {
-                              await GamificationService.debugUserStats(user.uid);
-                            }
-                          },
-                          style: ElevatedButton.styleFrom(backgroundColor: Colors.orange),
-                          child: const Text('Debug Stats'),
-                        ),
-                      ),
-                    ],
-                  ),
-                ),
-              ],
-
               // Content
               Expanded(
                 child: _loading