Initial Drupal site: content model + validation + Vue dashboard

- Content type "Ligne comptable" with Paragraphs "Répartition" (Compte + Montant)
- Taxonomies: Compte (9 comptes) and Client (unified client list)
- hook_node_presave + form validate: sum(répartition) must equal montant HT
- /dashboard route (progressive decoupling): Vue 3 app fetching JSON:API,
  computing solde par compte / par client client-side
- "Ajouter une ligne" opens the real Drupal node form in an AJAX modal
- Gin as default + admin theme
- 9 opening-balance lines seeded from suivi_compta_SASFigli2026_v2.ods

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

config/sync/user.role.authenticated.yml

@@ -0,0 +1,20 @@
+uuid: b6c88fc4-d401-4897-ae44-6d64a1628f5e
+langcode: en
+status: true
+dependencies:
+  config:
+    - filter.format.basic_html
+  module:
+    - file
+    - filter
+    - system
+_core:
+  default_config_hash: wkW7P5A53YhGmsgamrmTbfwpZrqdnPYiJdoAZQtdmJg
+id: authenticated
+label: 'Authenticated user'
+weight: 1
+is_admin: false
+permissions:
+  - 'access content'
+  - 'delete own files'
+  - 'use text format basic_html'