some ui fix and debug input field, separate price field

src/app/core/services/toast.service.ts

@@ -10,10 +10,18 @@ interface IToast extends Pick<ToastMessageOptions, 'sticky' | 'life'> {
   providedIn: 'root',
 })
 export class ToastService {
+  private readonly dedupeWindowMs = 2000;
+  private readonly recentMessages = new Map<string, number>();
+
   constructor(private messageService: MessageService) {}
 
   add(message: ToastMessageOptions) {
     if (!message.detail) return;
+    const dedupeKey = `${message.severity ?? ''}|${message.summary ?? ''}|${message.detail}`;
+    const now = Date.now();
+    const lastShownAt = this.recentMessages.get(dedupeKey);
+    if (lastShownAt && now - lastShownAt < this.dedupeWindowMs) return;
+    this.recentMessages.set(dedupeKey, now);
     this.messageService.add(message);
   }