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/core.entity_view_display.paragraph.repartition.default.yml

@@ -0,0 +1,33 @@
+uuid: aa48ba54-bf46-4333-a99a-d644d83c4f49
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.field.paragraph.repartition.field_compte
+    - field.field.paragraph.repartition.field_montant
+    - paragraphs.paragraphs_type.repartition
+id: paragraph.repartition.default
+targetEntityType: paragraph
+bundle: repartition
+mode: default
+content:
+  field_compte:
+    type: entity_reference_label
+    label: above
+    settings:
+      link: true
+    third_party_settings: {  }
+    weight: 0
+    region: content
+  field_montant:
+    type: number_decimal
+    label: above
+    settings:
+      thousand_separator: ''
+      decimal_separator: .
+      scale: 2
+      prefix_suffix: true
+    third_party_settings: {  }
+    weight: 1
+    region: content
+hidden: {  }