[ADD] website_sale_disable_cart: extract cart restriction from website_sale_aplicoop

The "shop as a read-only catalog" behaviour lived inside website_sale_aplicoop,
so every site that wanted the eskaera flow also lost the standard cart. It now
ships as its own installable addon, with the redirect target configurable
instead of hardcoded to /eskaera.

- website_sale_disable_cart: hides the cart UI (12 header styles + the product
  card quick-add) and overrides the standard cart endpoints. Redirect URL is
  configurable in Website settings (default /shop); only site-internal paths are
  accepted, so a misconfigured value cannot turn the shop into an open redirect
  nor loop back into a disabled route.
- Fixes carried over from the original code: /shop/cart/quantity is the Odoo 18
  path (it was /shop/cart_quantity, which never matched), the boxed, sidebar and
  sales two/three/four headers were not covered (the cart link stayed visible on
  them), and the routes now override the standard methods instead of registering
  duplicate ones.
- website_sale_aplicoop 18.0.1.12.0: drops the view file and the four redirect
  routes; installing it no longer touches the standard shop.

Upgrade order matters: update website_sale_aplicoop first, then install
website_sale_disable_cart in a second Odoo run — both use the same XPaths and
obsolete records are only cleaned up at the end of a run.

Tests: 8/8 in website_sale_disable_cart, aplicoop unaffected (its 2 failures
predate this change). Verified live on a DB clone: /shop/cart returns 303 to the
configured URL and no cart markup remains on /shop.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

website_sale_disable_cart/i18n/es.po

@@ -0,0 +1,52 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* website_sale_disable_cart
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 18.0\n"
+"Report-Msgid-Bugs-To: \n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"Language: es_ES\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: website_sale_disable_cart
+#: model_terms:ir.ui.view,arch_db:website_sale_disable_cart.res_config_settings_view_form
+msgid "Cart Redirect URL"
+msgstr "URL de redirección del carrito"
+
+#. module: website_sale_disable_cart
+#: model:ir.model,name:website_sale_disable_cart.model_res_config_settings
+msgid "Config Settings"
+msgstr "Ajustes de configuración"
+
+#. module: website_sale_disable_cart
+#: model_terms:ir.ui.view,arch_db:website_sale_disable_cart.res_config_settings_view_form
+msgid "Disabled Cart"
+msgstr "Carrito desactivado"
+
+#. module: website_sale_disable_cart
+#: model:ir.model.fields,field_description:website_sale_disable_cart.field_res_config_settings__disabled_cart_redirect_url
+msgid "Disabled Cart Redirect URL"
+msgstr "URL de redirección del carrito desactivado"
+
+#. module: website_sale_disable_cart
+#: model:ir.model.fields,help:website_sale_disable_cart.field_res_config_settings__disabled_cart_redirect_url
+msgid ""
+"Internal path visitors are sent to when they reach a standard cart URL. Must "
+"start with '/' and must not point back to /shop/cart; otherwise '/shop' is "
+"used."
+msgstr ""
+"Ruta interna a la que se envía a las personas visitantes cuando llegan a una "
+"URL estándar del carrito. Debe empezar por '/' y no puede apuntar de nuevo a "
+"/shop/cart; en caso contrario se usa '/shop'."
+
+#. module: website_sale_disable_cart
+#: model_terms:ir.ui.view,arch_db:website_sale_disable_cart.res_config_settings_view_form
+msgid "Internal path visitors land on when they reach a standard cart URL"
+msgstr ""
+"Ruta interna a la que se llega al entrar en una URL estándar del carrito"

website_sale_disable_cart/i18n/eu.po

@@ -0,0 +1,52 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* website_sale_disable_cart
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 18.0\n"
+"Report-Msgid-Bugs-To: \n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"Language: eu\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: website_sale_disable_cart
+#: model_terms:ir.ui.view,arch_db:website_sale_disable_cart.res_config_settings_view_form
+msgid "Cart Redirect URL"
+msgstr "Saskiaren birbideratze URLa"
+
+#. module: website_sale_disable_cart
+#: model:ir.model,name:website_sale_disable_cart.model_res_config_settings
+msgid "Config Settings"
+msgstr "Konfigurazio ezarpenak"
+
+#. module: website_sale_disable_cart
+#: model_terms:ir.ui.view,arch_db:website_sale_disable_cart.res_config_settings_view_form
+msgid "Disabled Cart"
+msgstr "Saskia desgaituta"
+
+#. module: website_sale_disable_cart
+#: model:ir.model.fields,field_description:website_sale_disable_cart.field_res_config_settings__disabled_cart_redirect_url
+msgid "Disabled Cart Redirect URL"
+msgstr "Desgaitutako saskiaren birbideratze URLa"
+
+#. module: website_sale_disable_cart
+#: model:ir.model.fields,help:website_sale_disable_cart.field_res_config_settings__disabled_cart_redirect_url
+msgid ""
+"Internal path visitors are sent to when they reach a standard cart URL. Must "
+"start with '/' and must not point back to /shop/cart; otherwise '/shop' is "
+"used."
+msgstr ""
+"Bisitariak saskiaren URL estandar batera iristean bidaltzen zaien barne "
+"bidea. '/' karakterearekin hasi behar da eta ezin du /shop/cart-era itzuli; "
+"bestela '/shop' erabiltzen da."
+
+#. module: website_sale_disable_cart
+#: model_terms:ir.ui.view,arch_db:website_sale_disable_cart.res_config_settings_view_form
+msgid "Internal path visitors land on when they reach a standard cart URL"
+msgstr ""
+"Saskiaren URL estandar batera iristean bisitariak iristen diren barne bidea"

website_sale_disable_cart/i18n/website_sale_disable_cart.pot

@@ -0,0 +1,47 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* website_sale_disable_cart
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 18.0\n"
+"Report-Msgid-Bugs-To: \n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: website_sale_disable_cart
+#: model_terms:ir.ui.view,arch_db:website_sale_disable_cart.res_config_settings_view_form
+msgid "Cart Redirect URL"
+msgstr ""
+
+#. module: website_sale_disable_cart
+#: model:ir.model,name:website_sale_disable_cart.model_res_config_settings
+msgid "Config Settings"
+msgstr ""
+
+#. module: website_sale_disable_cart
+#: model_terms:ir.ui.view,arch_db:website_sale_disable_cart.res_config_settings_view_form
+msgid "Disabled Cart"
+msgstr ""
+
+#. module: website_sale_disable_cart
+#: model:ir.model.fields,field_description:website_sale_disable_cart.field_res_config_settings__disabled_cart_redirect_url
+msgid "Disabled Cart Redirect URL"
+msgstr ""
+
+#. module: website_sale_disable_cart
+#: model:ir.model.fields,help:website_sale_disable_cart.field_res_config_settings__disabled_cart_redirect_url
+msgid ""
+"Internal path visitors are sent to when they reach a standard cart URL. Must "
+"start with '/' and must not point back to /shop/cart; otherwise '/shop' is "
+"used."
+msgstr ""
+
+#. module: website_sale_disable_cart
+#: model_terms:ir.ui.view,arch_db:website_sale_disable_cart.res_config_settings_view_form
+msgid "Internal path visitors land on when they reach a standard cart URL"
+msgstr ""