first batch of content architecture and admin ui

src/web/modules/custom/admin_menus/admin_menus.info.yml

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+name: 'Admin Menus'
+type: module
+description: 'create editors admin menus through module as they will be exportable as config'
+core_version_requirement: ^8.8 || ^9.2
+package: 'Custom'

src/web/modules/custom/admin_menus/admin_menus.links.action.yml

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+admin_menus.concernement_add:
+  route_name: node.add
+  route_parameters:
+    node_type: 'concernement'
+  title: 'Add Concernement'
+  appears_on:
+    - view.admin_nodes.page_1
+
+admin_menus.entite_add:
+  route_name: node.add
+  route_parameters:
+    node_type: 'entite'
+  title: 'Add Entité'
+  appears_on:
+    - view.admin_nodes.page_2
+
+# admin_menus.company_add:
+#   route_name: entity.taxonomy_term.add_form
+#   route_parameters:
+#     taxonomy_vocabulary: 'company'
+#   title: 'Add Companie'
+#   appears_on:
+#     - view.admin_taxo.page_1
+
+
+# admin_menus.user_add:
+#   route_name: user.admin_create
+#   title: 'Add User'
+#   appears_on:
+#     - view.admin_users.page_1
+

src/web/modules/custom/admin_menus/admin_menus.links.menu.yml

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+admin_menus.contents:
+  title: Contents
+  description: ''
+  parent: administrator
+  route_name: view.admin_nodes.page_1
+  menu_name: administrator
+  weight: 0
+
+admin_menus.concernements:
+  title: Concernements
+  description: ''
+  parent: admin_menus.contents
+  route_name: view.admin_nodes.page_1
+  menu_name: administrator
+  weight: 0
+
+admin_menus.entitees:
+  title: Entitees
+  description: ''
+  parent: admin_menus.contents
+  route_name: view.admin_nodes.page_2
+  menu_name: administrator
+  weight: 2

src/web/modules/custom/admin_menus/admin_menus.module

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+<?php
+
+/**
+ * @file
+ * Contains admin_menus.module.
+ */
+
+use Drupal\Core\Routing\RouteMatchInterface;
+
+/**
+ * Implements hook_help().
+ */
+function admin_menus_help($route_name, RouteMatchInterface $route_match) {
+  switch ($route_name) {
+    // Main module help for the editors_menus module.
+    case 'help.page.admin_menus':
+      $output = '';
+      $output .= '<h3>' . t('About') . '</h3>';
+      $output .= '<p>' . t('create editors admins menus through module as they will be exportable as config') . '</p>';
+      return $output;
+
+    default:
+  }
+}

src/web/modules/custom/admin_menus/config/install/system.menu.administrator.yml

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+langcode: und
+status: true
+dependencies: {  }
+id: administrator
+label: Administrators
+description: 'An admin menu for content administrators (must be customized for each new project)'
+locked: false