calendar done needs to do heuristic

src/app/services/user-input-service.ts

@@ -0,0 +1,13 @@
+import { Injectable, signal } from '@angular/core';
+import Holidays, { HolidaysTypes } from 'date-holidays';
+
+
+
+@Injectable({
+	providedIn: 'root'
+})
+export class UserInputService {
+	calculateVacationOptimization(nbCP: number, nbRTT: number, nbOther: number, year: number, closedDays: Date[]) {
+		// Logic to calculate vacation optimization based on user input
+	}
+}