refactor(planning): remove the original decision trace

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

@@ -6,12 +6,7 @@ import {
 	isWorkingPlanningDate,
 	parseDeclaredDays,
 } from './declared-non-working-days';
-import type {
-	LeaveType,
-	PlanningOutcome,
-	PlanningSnapshot,
-	PlanningTrace,
-} from './leave-planner.service';
+import type { LeaveType, PlanningOutcome, PlanningSnapshot } from './leave-planner.service';
 
 @Injectable({
 	providedIn: 'root',
@@ -169,8 +164,6 @@ export class UserInputService {
 	readonly remainingVacationDaysSignal = signal<VacDay[]>([]);
 	readonly planningOutcomeSignal = signal<PlanningOutcome | null>(null);
 	readonly planningSnapshotSignal = signal<PlanningSnapshot | null>(null);
-	readonly planningTraceSignal = signal<PlanningTrace | null>(null);
-	readonly traceResolvedSignal = signal(false);
 	readonly displayedPlanSignal = computed(() => {
 		const outcome = this.planningOutcomeSignal();
 		return outcome?.kind === 'Plan'