fix(portfolio): use impersonation-aware date for Time in Market

Resolves #6052

apps/api/src/app/portfolio/portfolio.service.ts

@@ -1954,6 +1954,7 @@ export class PortfolioService {
       }).length,
       committedFunds: committedFunds.toNumber(),
       currentValueInBaseCurrency: currentValueInBaseCurrency.toNumber(),
+      dateOfFirstActivity: firstOrderDate,
       dividendInBaseCurrency: dividendInBaseCurrency.toNumber(),
       emergencyFund: {
         assets: emergencyFundHoldingsValueInBaseCurrency,

apps/client/src/app/components/portfolio-summary/portfolio-summary.component.ts

@@ -84,10 +84,13 @@ export class GfPortfolioSummaryComponent implements OnChanges {
         this.precision = 0;
       }
 
-      if (this.user.dateOfFirstActivity) {
-        this.timeInMarket = formatDistanceToNow(this.user.dateOfFirstActivity, {
+      if (this.summary.dateOfFirstActivity) {
+        this.timeInMarket = formatDistanceToNow(
+          this.summary.dateOfFirstActivity,
+          {
             locale: getDateFnsLocale(this.language)
-        });
+          }
+        );
       } else {
         this.timeInMarket = '-';
       }

apps/client/src/app/services/data.service.ts

@@ -564,6 +564,12 @@ export class DataService {
             }
           }
 
+          if (response.summary?.dateOfFirstActivity) {
+            response.summary.dateOfFirstActivity = parseISO(
+              response.summary.dateOfFirstActivity
+            );
+          }
+
           return response;
         })
       );

libs/common/src/lib/interfaces/portfolio-summary.interface.ts

@@ -7,6 +7,7 @@ export interface PortfolioSummary extends PortfolioPerformance {
   annualizedPerformancePercentWithCurrencyEffect: number;
   cash: number;
   committedFunds: number;
+  dateOfFirstActivity: Date;
   dividendInBaseCurrency: number;
   emergencyFund: {
     assets: number;