feat(documents) : add document type constants and updateDocument method

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/shared/documentTypes.ts

@@ -0,0 +1,15 @@
+export const DOCUMENT_TYPES = [
+  { value: 'documentation', label: 'Documentation' },
+  { value: 'devis', label: 'Devis' },
+  { value: 'facture', label: 'Facture' },
+  { value: 'plan', label: 'Plan' },
+  { value: 'photo', label: 'Photo' },
+  { value: 'autre', label: 'Autre' },
+] as const
+
+export type DocumentTypeValue = (typeof DOCUMENT_TYPES)[number]['value']
+
+export const getDocumentTypeLabel = (value: string): string => {
+  const found = DOCUMENT_TYPES.find((t) => t.value === value)
+  return found?.label ?? value
+}