v1.4: group folder/photo limits and ad banners

Co-authored-by: Cursor <cursoragent@cursor.com>

app/models.py

@@ -133,6 +133,8 @@ class UserGroup(db.Model):
     name = db.Column(db.String(80), unique=True, nullable=False)
     slug = db.Column(db.String(80), unique=True, nullable=False, index=True)
     disk_quota_mb = db.Column(db.Integer, nullable=False, default=100)
+    max_folders = db.Column(db.Integer, nullable=False, default=10)
+    max_photos = db.Column(db.Integer, nullable=False, default=500)
     is_default = db.Column(db.Boolean, nullable=False, default=False)
     created_at = db.Column(
         db.DateTime,
@@ -150,6 +152,47 @@ class UserGroup(db.Model):
             return "Без лимита"
         return f"{self.disk_quota_mb} МБ"
 
+    @property
+    def folders_limit_label(self):
+        if self.max_folders == 0:
+            return "Без лимита"
+        return str(self.max_folders)
+
+    @property
+    def photos_limit_label(self):
+        if self.max_photos == 0:
+            return "Без лимита"
+        return str(self.max_photos)
+
+
+class AdBanner(db.Model):
+    __tablename__ = "ad_banners"
+
+    id = db.Column(db.Integer, primary_key=True)
+    title = db.Column(db.String(120), nullable=False)
+    image_url = db.Column(db.String(500), nullable=False)
+    link_url = db.Column(db.String(500), nullable=True)
+    alt_text = db.Column(db.String(200), nullable=True)
+    position = db.Column(db.String(30), nullable=False, default="main", index=True)
+    is_active = db.Column(db.Boolean, nullable=False, default=True)
+    sort_order = db.Column(db.Integer, nullable=False, default=0)
+    created_at = db.Column(
+        db.DateTime,
+        nullable=False,
+        default=lambda: datetime.now(timezone.utc),
+    )
+
+    POSITIONS = {
+        "main": "Главная (под hero)",
+        "cabinet": "Личный кабинет",
+        "sidebar": "Боковая колонка",
+        "footer": "Подвал",
+    }
+
+    @property
+    def position_label(self):
+        return self.POSITIONS.get(self.position, self.position)
+
 
 class Folder(db.Model):
     __tablename__ = "folders"