Release v2.2: admin auth settings, Passkey RP ID, Cloudflare and Google captcha

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

app/templates/auth/register.html

@@ -28,6 +28,7 @@
                     <label for="password2">Подтверждение пароля</label>
                     <input type="password" id="password2" name="password2" required minlength="6" autocomplete="new-password" placeholder="повторите пароль">
                 </div>
+                {% include "partials/captcha.html" %}
                 <button type="submit" class="btn btn--primary btn--full">Создать аккаунт</button>
             </form>
 
@@ -38,3 +39,7 @@
     </div>
 </section>
 {% endblock %}
+
+{% block scripts %}
+{% include "partials/captcha_scripts.html" %}
+{% endblock %}