feat(front) : page Modification fournisseur (/suppliers/{id}/edit) (ERP-96)

- page edit.vue : champs pre-remplis depuis GET /suppliers/{id}, PATCH partiel
  INDEPENDANT par onglet (mode strict RG-2.16 : un seul groupe de serialisation
  par appel), pas de formulaire principal masque mais editable via son propre PATCH
- pas de contact inline (ERP-106) ; onglets metier readonly sans manage, Comptabilite
  visible/editable selon accounting.view / accounting.manage (resolveTabEditability)
- collections contacts/adresses/RIB : POST/PATCH par ligne + DELETE differe des
  retraits ; erreurs 422 mappees inline par champ (propertyPath) via useSupplierFormErrors
- supplierEdit : mappers d'hydratation (mapMainDraft/mapInformationDraft/
  mapAccountingFormDraft, + volumeForecast) et resolveTabEditability
- tests Vitest : mappers d'hydratation + gating par role (matrice 2.7)
- miroir de l'ecran Modification client (M1), adapte M2 (addressType/bennes/
  triageProvider/volumeForecast, pas de relation Distributeur/Courtier)

frontend/modules/commercial/utils/__tests__/supplierEdit.spec.ts

@@ -6,7 +6,12 @@ import {
     buildInformationPayload,
     buildMainPayload,
     buildRibPayload,
+    mapAccountingFormDraft,
+    mapInformationDraft,
+    mapMainDraft,
+    resolveTabEditability,
 } from '../supplierEdit'
+import type { SupplierDetail } from '~/modules/commercial/utils/supplierConsultation'
 import { emptyAddress, emptyContact, emptyRib } from '~/modules/commercial/types/supplierForm'
 
 describe('buildMainPayload (groupe supplier:write:main)', () => {
@@ -113,3 +118,85 @@ describe('buildRibPayload (sous-ressource supplier_rib)', () => {
         expect(payload.iban).toBe('FR1420041010050500013M02606')
     })
 })
+
+describe('mapMainDraft — pre-remplissage bloc principal (companyName + categories, pas de relation M2)', () => {
+    it('extrait companyName et les IRI de categories', () => {
+        const draft = mapMainDraft({
+            '@id': '/api/suppliers/85', id: 85,
+            companyName: 'DOD862875',
+            categories: [{ '@id': '/api/categories/2279', code: 'NEGOCIANT' }],
+        } as SupplierDetail)
+        expect(draft.companyName).toBe('DOD862875')
+        expect(draft.categoryIris).toEqual(['/api/categories/2279'])
+    })
+
+    it('gere les cles omises (skip_null_values) sans planter', () => {
+        const draft = mapMainDraft({ '@id': '/api/suppliers/2', id: 2 } as SupplierDetail)
+        expect(draft.companyName).toBeNull()
+        expect(draft.categoryIris).toEqual([])
+    })
+})
+
+describe('mapInformationDraft — pre-remplissage onglet Information (+ volumeForecast M2)', () => {
+    it('tronque foundedAt, stringifie employeesCount et volumeForecast', () => {
+        const draft = mapInformationDraft({
+            '@id': '/api/suppliers/85', id: 85,
+            foundedAt: '2008-04-01T00:00:00+02:00', employeesCount: 42, volumeForecast: 8000,
+        } as SupplierDetail)
+        expect(draft.foundedAt).toBe('2008-04-01')
+        expect(draft.employeesCount).toBe('42')
+        expect(draft.volumeForecast).toBe('8000')
+    })
+
+    it('cles omises -> null (volumeForecast inclus)', () => {
+        const draft = mapInformationDraft({ '@id': '/api/suppliers/1', id: 1 } as SupplierDetail)
+        expect(draft.foundedAt).toBeNull()
+        expect(draft.employeesCount).toBeNull()
+        expect(draft.volumeForecast).toBeNull()
+        expect(draft.description).toBeNull()
+    })
+})
+
+describe('mapAccountingFormDraft — pre-remplissage onglet Comptabilite', () => {
+    it('extrait les scalaires et les IRI des referentiels embarques', () => {
+        const draft = mapAccountingFormDraft({
+            '@id': '/api/suppliers/85', id: 85,
+            siren: '123456789', accountNumber: 'F0001', nTva: 'FR00123456789',
+            tvaMode: { '@id': '/api/tva_modes/30', label: 'France (ventes)' },
+            paymentType: '/api/payment_types/14',
+        } as SupplierDetail)
+        expect(draft.siren).toBe('123456789')
+        expect(draft.tvaModeIri).toBe('/api/tva_modes/30')
+        expect(draft.paymentTypeIri).toBe('/api/payment_types/14')
+        expect(draft.bankIri).toBeNull()
+    })
+
+    it('cles comptables absentes (gating par omission) -> scalaires/IRI null', () => {
+        const draft = mapAccountingFormDraft({ '@id': '/api/suppliers/1', id: 1 } as SupplierDetail)
+        expect(draft.siren).toBeNull()
+        expect(draft.tvaModeIri).toBeNull()
+        expect(draft.bankIri).toBeNull()
+    })
+})
+
+describe('resolveTabEditability — gating par role (matrice § 2.7)', () => {
+    it('Admin : tout editable', () => {
+        expect(resolveTabEditability({ canManage: true, canAccountingView: true, canAccountingManage: true }))
+            .toEqual({ businessEditable: true, accountingVisible: true, accountingEditable: true })
+    })
+
+    it('Bureau / Commerciale (manage seul) : metier editable, Comptabilite masquee', () => {
+        expect(resolveTabEditability({ canManage: true, canAccountingView: false, canAccountingManage: false }))
+            .toEqual({ businessEditable: true, accountingVisible: false, accountingEditable: false })
+    })
+
+    it('Compta (accounting seul) : metier readonly, Comptabilite editable', () => {
+        expect(resolveTabEditability({ canManage: false, canAccountingView: true, canAccountingManage: true }))
+            .toEqual({ businessEditable: false, accountingVisible: true, accountingEditable: true })
+    })
+
+    it('Sans permission d\'edition : rien d\'editable', () => {
+        expect(resolveTabEditability({ canManage: false, canAccountingView: false, canAccountingManage: false }))
+            .toEqual({ businessEditable: false, accountingVisible: false, accountingEditable: false })
+    })
+})