feat: gestion RBAC granular, importacion sheets, filtrado de aulas virtuales y pisos, capacidad infinita y traduccion

app/models/user.py

@@ -15,6 +15,8 @@ class User(UserMixin, db.Model):
     created_at = db.Column(db.DateTime, default=datetime.utcnow)
     last_login = db.Column(db.DateTime)
     preferred_language = db.Column(db.String(10), default=None, nullable=True)
+    theme_preference = db.Column(db.String(10), default='auto', nullable=False)
+    role_id = db.Column(db.Integer, db.ForeignKey('roles.id', ondelete='SET NULL'), nullable=True)
     
     # Virtual fields for future compatibility
     @property
@@ -39,7 +41,22 @@ class User(UserMixin, db.Model):
     
     def is_admin(self):
         """Check if user is admin"""
-        return self.role == 'ADMIN'
+        if self.role_obj and self.role_obj.name.lower() in ['admin', 'administrador']:
+            return True
+        return str(self.role).upper() in ['ADMIN', 'ADMINISTRADOR']
+        
+    def has_permission(self, module, min_level='read'):
+        """Check if user has granular permission on a given module"""
+        if self.is_admin():
+            return True
+        if self.role_obj:
+            return self.role_obj.has_permission(module, min_level)
+        return False
+        
+    def can_manage(self):
+        """Check if user can access the Management / Admin section"""
+        return self.is_admin() or self.has_permission('users', 'read')
+
     
     def update_last_login(self):
         """Update last login timestamp"""
@@ -55,7 +72,9 @@ class User(UserMixin, db.Model):
             'role': self.role,
             'is_active': self.is_active,
             'created_at': self.created_at.isoformat() if self.created_at else None,
-            'last_login': self.last_login.isoformat() if self.last_login else None
+            'last_login': self.last_login.isoformat() if self.last_login else None,
+            'preferred_language': self.preferred_language,
+            'theme_preference': self.theme_preference
         }
     
 def __repr__(self):