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

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

app/folders.py

@@ -22,6 +22,7 @@ from app.folder_utils import (
     unlock_folder,
 )
 from app.models import Folder, FolderInvite, FolderMember, Photo, User
+from app.quota_utils import check_folder_limit
 from app.settings_service import get_settings
 from app.storage_service import delete_photo_file
 
@@ -31,6 +32,8 @@ bp = Blueprint("folders", __name__)
 @bp.route("/cabinet/folders")
 @login_required
 def list_folders():
+    from app.quota_utils import quota_status
+
     process_pending_invites(current_user)
     owned = Folder.query.filter_by(owner_id=current_user.id).order_by(Folder.created_at.desc()).all()
     shared = (
@@ -42,7 +45,12 @@ def list_folders():
         .order_by(Folder.created_at.desc())
         .all()
     )
-    return render_template("cabinet/folders/list.html", owned_folders=owned, shared_folders=shared)
+    return render_template(
+        "cabinet/folders/list.html",
+        owned_folders=owned,
+        shared_folders=shared,
+        quota=quota_status(current_user),
+    )
 
 
 @bp.route("/cabinet/folders/create", methods=["POST"])
@@ -56,6 +64,11 @@ def create_folder():
         flash("Название папки — минимум 2 символа", "error")
         return redirect(url_for("folders.list_folders"))
 
+    ok, limit_msg = check_folder_limit(current_user)
+    if not ok:
+        flash(limit_msg, "error")
+        return redirect(url_for("folders.list_folders"))
+
     folder = Folder(name=name, owner_id=current_user.id, is_private=is_private)
     if access_password:
         if len(access_password) < 4: