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/taxonomy.vocabulary.compte.yml

@@ -0,0 +1,9 @@
+uuid: 87884f08-e5cb-4dce-95c7-fe30177036ae
+langcode: en
+status: true
+dependencies: {  }
+name: Compte
+vid: compte
+description: null
+weight: 0
+new_revision: false