Add folders with password sharing and email invites

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

app/auth.py

@@ -2,6 +2,7 @@ from flask import Blueprint, flash, redirect, render_template, request, url_for
 from flask_login import current_user, login_user, logout_user
 
 from app import db
+from app.folder_utils import process_pending_invites
 from app.models import User
 
 bp = Blueprint("auth", __name__, url_prefix="/auth")
@@ -34,7 +35,10 @@ def register():
             db.session.add(user)
             db.session.commit()
             login_user(user)
+            accepted = process_pending_invites(user)
             flash("Регистрация успешна. Добро пожаловать!", "success")
+            if accepted:
+                flash(f"Вам открыт доступ к {accepted} общим папкам", "success")
             return redirect(url_for("cabinet.index"))
 
     return render_template("auth/register.html")
@@ -60,7 +64,10 @@ def login():
             flash("Аккаунт заблокирован", "error")
         else:
             login_user(user, remember=remember)
+            accepted = process_pending_invites(user)
             flash(f"Добро пожаловать, {user.username}!", "success")
+            if accepted:
+                flash(f"Вам открыт доступ к {accepted} общим папкам", "success")
             next_page = request.args.get("next")
             if next_page:
                 return redirect(next_page)