feat: add portfolio valuation history

frontend/src/api/portfolio.ts

@@ -1,4 +1,4 @@
-import type { ImportBrokerReportResponse, ImportPortfolioResponse, PortfolioFile, PortfolioOverviewResponse } from '@family-budget/shared';
+import type { ImportBrokerReportResponse, ImportPortfolioResponse, PortfolioFile, PortfolioHistoryResponse, PortfolioOverviewResponse } from '@family-budget/shared';
 import { api } from './client';
 
 export function importPortfolio(data: PortfolioFile): Promise<ImportPortfolioResponse> {
@@ -14,3 +14,7 @@ export function importBrokerReport(file: File): Promise<ImportBrokerReportRespon
 export function getPortfolioOverview(): Promise<PortfolioOverviewResponse> {
   return api.get('/api/portfolio');
 }
+
+export function getPortfolioHistory(): Promise<PortfolioHistoryResponse> {
+  return api.get('/api/portfolio/history');
+}

frontend/src/pages/PortfolioPage.tsx

@@ -1,6 +1,7 @@
 import { useEffect, useState } from 'react';
-import type { PortfolioOverviewResponse } from '@family-budget/shared';
-import { getPortfolioOverview } from '../api/portfolio';
+import { LineChart, Line, XAxis, YAxis, CartesianGrid, Tooltip, ResponsiveContainer } from 'recharts';
+import type { PortfolioHistoryResponse, PortfolioOverviewResponse } from '@family-budget/shared';
+import { getPortfolioHistory, getPortfolioOverview } from '../api/portfolio';
 import { formatDate } from '../utils/format';
 
 const money = new Intl.NumberFormat('ru-RU', { style: 'currency', currency: 'RUB', minimumFractionDigits: 2 });
@@ -8,9 +9,11 @@ const number = new Intl.NumberFormat('ru-RU', { maximumFractionDigits: 6 });
 
 export function PortfolioPage() {
   const [data, setData] = useState<PortfolioOverviewResponse | null>(null);
+  const [history, setHistory] = useState<PortfolioHistoryResponse | null>(null);
 
   useEffect(() => {
     getPortfolioOverview().then(setData).catch(() => {});
+    getPortfolioHistory().then(setHistory).catch(() => {});
   }, []);
 
   return (
@@ -50,6 +53,28 @@ export function PortfolioPage() {
           )}
         </section>
       ))}
+
+      {history?.accounts.map((account) => account.points.length > 1 && (
+        <section className="portfolio" key={`history-${account.accountId}`} aria-labelledby={`history-${account.accountId}`}>
+          <div className="portfolio__header">
+            <div>
+              <h2 id={`history-${account.accountId}`} className="portfolio__title">Динамика · {account.accountName}</h2>
+              <p className="portfolio__meta">Стоимость по загруженным отчётам</p>
+            </div>
+          </div>
+          <div className="chart-card portfolio__chart">
+            <ResponsiveContainer width="100%" height={280}>
+              <LineChart data={account.points.map((point) => ({ date: point.reportPeriodTo, value: point.totalValuation === null ? null : Number(point.totalValuation) }))}>
+                <CartesianGrid strokeDasharray="3 3" stroke="var(--color-border)" vertical={false} />
+                <XAxis dataKey="date" tickFormatter={(value: string) => formatDate(value)} fontSize={12} stroke="var(--color-text-secondary)" tickLine={false} axisLine={false} />
+                <YAxis tickFormatter={(value: number) => `${Math.round(value / 1000)}к`} fontSize={12} stroke="var(--color-text-secondary)" tickLine={false} axisLine={false} />
+                <Tooltip labelFormatter={(value) => formatDate(String(value))} formatter={(value) => value == null ? '—' : money.format(Number(value))} />
+                <Line type="monotone" dataKey="value" name="Стоимость" stroke="var(--color-primary)" strokeWidth={2} dot={{ r: 3 }} connectNulls />
+              </LineChart>
+            </ResponsiveContainer>
+          </div>
+        </section>
+      ))}
     </div>
   );
 }

frontend/src/styles/index.css

@@ -368,6 +368,11 @@ button {
   font-variant-numeric: tabular-nums;
 }
 
+.portfolio__chart {
+  min-height: 280px;
+  padding: 16px;
+}
+
 /* ================================================================
    Forms, buttons, badges
    ================================================================ */