Remove manual date entry and automate timestamp for new sales records

Removes dateVente field from NewSaleForm, sale types, and shared schema.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: dec54137-d5a2-4406-8ad4-5f2f9fb110bf
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/0715008c-7244-40f4-befc-26c014852236/fa7f08e0-2cf1-49d3-8250-af23db9cc3bd.jpg

client/src/components/NewSaleForm.tsx

@@ -133,7 +133,6 @@ export default function NewSaleForm() {
 
       const saleData = {
         vendeur: data.vendeur,
-        dateVente: data.dateVente,
         typeArticle: data.typeArticle,
         categorie: data.categorie as 'F2' | 'F3',
         quantite: parseInt(data.quantite),
@@ -167,7 +166,7 @@ export default function NewSaleForm() {
                 <User className="h-5 w-5" />
                 <span>Informations Vendeur</span>
               </div>
-              <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
+              <div className="grid grid-cols-1 gap-4">
                 <FormField
                   control={form.control}
                   name="vendeur"
@@ -181,19 +180,6 @@ export default function NewSaleForm() {
                     </FormItem>
                   )}
                 />
-                <FormField
-                  control={form.control}
-                  name="dateVente"
-                  render={({ field }) => (
-                    <FormItem>
-                      <FormLabel>Date de vente <span className="text-destructive">*</span></FormLabel>
-                      <FormControl>
-                        <Input type="date" className="modern-input" {...field} />
-                      </FormControl>
-                      <FormMessage />
-                    </FormItem>
-                  )}
-                />
               </div>
             </div>