feat: implement mobile credit notes management page with CRUD operations and filtering.

client/src/pages/mobile/AvoirsPage.tsx

@@ -346,6 +346,15 @@ export default function MobileAvoirsPage() {
                                 />
                             </div>
 
+                            <FormField
+                                control={form.control}
+                                name="comment"
+                                render={({ field }) => (
+                                    <FormItem>
+                                        <FormLabel>Commentaire / Raison</FormLabel>
+                                        <FormControl>
+                                            <Textarea placeholder="Erreur prix, manquant..." {...field} />
+                                        </FormControl>
                                     </FormItem>
                                 )}
                             />
@@ -378,7 +387,7 @@ export default function MobileAvoirsPage() {
                 </SheetContent>
             </Sheet>
 
-            {/* FAB */ }
+            {/* FAB */}
             <Button
                 className="fixed bottom-20 right-4 h-14 w-14 rounded-full shadow-lg bg-indigo-600 hover:bg-indigo-700 p-0 flex items-center justify-center z-50"
                 onClick={() => setIsCreateOpen(true)}