feat: v0.1.1 - poll editing, notifications, fixes

- Poll editing by creator (title, options, deadline)
- Notification panel with app notifications and click-to-navigate
- Poll creation notifies group members
- Invitation rejection notifies inviter
- Fix: notification createRule, timezone, autocancel, nginx, tab timing

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

backend/pb_migrations/1776490365_updated_users.js

@@ -0,0 +1,18 @@
+/// <reference path="../pb_data/types.d.ts" />
+migrate((db) => {
+  const dao = new Dao(db)
+  const collection = dao.findCollectionByNameOrId("_pb_users_auth_")
+
+  collection.listRule = ""
+  collection.viewRule = ""
+
+  return dao.saveCollection(collection)
+}, (db) => {
+  const dao = new Dao(db)
+  const collection = dao.findCollectionByNameOrId("_pb_users_auth_")
+
+  collection.listRule = "@request.auth.id != \"\""
+  collection.viewRule = "@request.auth.id != \"\""
+
+  return dao.saveCollection(collection)
+})