Create a new sales registry app with identity verification features

Initial commit of the React application with UI components, form, camera, and indexedDB integration for sale data management.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 91318273-c764-4fd4-be04-bdc12c38af32
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/0715008c-7244-40f4-befc-26c014852236/02867739-9ff7-4441-aca2-12e0153376c5.jpg

client/src/lib/validation.ts

@@ -0,0 +1,48 @@
+export function validateEAN13(code: string): boolean {
+  if (!code || code.length !== 13) return false;
+  if (!/^\d{13}$/.test(code)) return false;
+  
+  // Calculate checksum
+  let sum = 0;
+  for (let i = 0; i < 12; i++) {
+    const digit = parseInt(code[i]);
+    sum += i % 2 === 0 ? digit : digit * 3;
+  }
+  
+  const checksum = (10 - (sum % 10)) % 10;
+  return checksum === parseInt(code[12]);
+}
+
+export function validateRequiredFields(formData: any): string[] {
+  const requiredFields = [
+    { key: 'vendeur', label: 'Vendeur' },
+    { key: 'typeArticle', label: 'Type d\'article' },
+    { key: 'categorie', label: 'Catégorie' },
+    { key: 'quantite', label: 'Quantité' },
+    { key: 'nom', label: 'Nom' },
+    { key: 'prenom', label: 'Prénom' }
+  ];
+  
+  return requiredFields
+    .filter(field => !formData[field.key] || formData[field.key].toString().trim() === '')
+    .map(field => field.label);
+}
+
+export const ARTICLE_CATEGORY_MAPPING = {
+  "Pétard à mèche": ["F3"],
+  "Batterie": ["F3"],
+  "Batterie nécessitant un support externe": ["F3"],
+  "Combinaison": ["F3"],
+  "Combinaison nécessitant un support externe": ["F3"],
+  "Pétard aérien": ["F2", "F3"],
+  "Pétard à composition flash": ["F3"],
+  "Fusée": ["F2", "F3"],
+  "Chandelle romaine": ["F2", "F3"],
+  "Chandelle monocoup": ["F2", "F3"]
+} as const;
+
+export const IDENTITY_TYPES = [
+  { value: "CNI", label: "Carte Nationale d'Identité" },
+  { value: "Passeport", label: "Passeport" },
+  { value: "Permis de conduire", label: "Permis de conduire" }
+] as const;