feat(driver-pwa): balance screen (hero total + accounts)

Co-Authored-By: claude-flow <ruv@ruv.net>

driver-pwa/frontend/src/pages/BalancePage.test.tsx

@@ -0,0 +1,35 @@
+import { describe, it, expect, vi } from "vitest";
+import { render, screen } from "@testing-library/react";
+import { MemoryRouter } from "react-router-dom";
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+
+vi.mock("@/api/driver", () => ({
+  getBalance: vi.fn(async () => ({
+    accounts: [
+      { bucket: "Долг аренда", balance: -3200 },
+      { bucket: "Депозит", balance: 5000 },
+    ],
+  })),
+}));
+
+import { BalancePage } from "./BalancePage";
+
+function wrap() {
+  const qc = new QueryClient();
+  return render(
+    <QueryClientProvider client={qc}>
+      <MemoryRouter><BalancePage /></MemoryRouter>
+    </QueryClientProvider>
+  );
+}
+
+describe("BalancePage", () => {
+  it("shows hero total (sum of negatives) and account rows", async () => {
+    wrap();
+    expect(await screen.findByText("Долг аренда")).toBeInTheDocument();
+    expect(screen.getByText("Депозит")).toBeInTheDocument();
+    // Appears in both the hero total and the single debt account row.
+    expect(screen.getAllByText("−3 200 ₽").length).toBeGreaterThan(0);
+    expect(screen.getByRole("button", { name: /Пополнить/i })).toBeInTheDocument();
+  });
+});

driver-pwa/frontend/src/pages/BalancePage.tsx

@@ -1 +1,55 @@
-export function BalancePage() { return null; }
+import { useQuery } from "@tanstack/react-query";
+import { useNavigate } from "react-router-dom";
+import { History, LogOut } from "lucide-react";
+import { getBalance } from "@/api/driver";
+import { formatMoney } from "@/lib/format";
+import { useAuth } from "@/store/auth";
+import { AppHeader } from "@/components/AppHeader";
+import { Spinner } from "@/components/Spinner";
+
+export function BalancePage() {
+  const nav = useNavigate();
+  const clear = useAuth((s) => s.clear);
+  const { data, isLoading } = useQuery({ queryKey: ["balance"], queryFn: getBalance });
+
+  const accounts = data?.accounts ?? [];
+  const totalDebt = accounts.filter((a) => a.balance < 0).reduce((s, a) => s + a.balance, 0);
+
+  return (
+    <div>
+      <AppHeader initials="" />
+      <div className="card p-4 mb-4 text-center">
+        <p className="text-muted text-xs mb-1">Общий долг</p>
+        <p className={`text-2xl font-extrabold ${totalDebt < 0 ? "text-neg" : ""}`}>{formatMoney(totalDebt)}</p>
+      </div>
+
+      {isLoading ? (
+        <div className="flex justify-center py-10"><Spinner /></div>
+      ) : (
+        <div className="mb-4">
+          {accounts.map((a) => (
+            <button
+              key={a.bucket}
+              onClick={() => nav("/topup", { state: { bucket: a.bucket } })}
+              className="w-full flex justify-between items-center py-3 border-b border-line last:border-0 text-left"
+            >
+              <span className="text-sm">{a.bucket}</span>
+              <b className={a.balance < 0 ? "text-neg" : "text-pos"}>{formatMoney(a.balance)}</b>
+            </button>
+          ))}
+        </div>
+      )}
+
+      <button className="btn-primary" onClick={() => nav("/topup")}>Пополнить</button>
+
+      <div className="flex justify-center gap-6 mt-6 text-muted text-xs">
+        <button className="flex items-center gap-1.5" onClick={() => nav("/history")}>
+          <History size={15} /> История
+        </button>
+        <button className="flex items-center gap-1.5" onClick={() => { clear(); nav("/login"); }}>
+          <LogOut size={15} /> Выйти
+        </button>
+      </div>
+    </div>
+  );
+}