feat: add admin dashboard summary

Add seller-scoped dashboard aggregation and API, private financial summary DTOs, responsive admin metrics, and authenticated E2E coverage.

apps/api/tests/application/dashboard-service.test.js

@@ -0,0 +1,32 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import { createDashboardService } from '../../src/modules/dashboard/services/dashboard-service.js';
+
+test('aggregates seller dashboard counts and financial totals', async () => {
+  const service = createDashboardService({
+    productService: { async listBySellerId() { return [{ id: 'product-1' }]; } },
+    inventoryItemService: { async listBySellerId() { return [{ status: 'ACTIVE' }, { status: 'SOLD' }]; } },
+    listingService: { async list() { return [{ status: 'AVAILABLE', askingPriceMinor: 2500, imageCount: 1 }]; } },
+    saleService: { async list() { return [{ status: 'COMPLETED', netProceedsMinor: 2200, profitMinor: 700 }]; } },
+    acquisitionService: { async list() { return [{ costBasisMinor: 1500 }]; } },
+  });
+
+  const dashboard = await service.get({ sellerId: 'seller-1' });
+  assert.deepEqual(dashboard.counts, {
+    products: 1,
+    inventory: 2,
+    activeInventory: 1,
+    soldInventory: 1,
+    availableListings: 1,
+    sales: 1,
+    acquisitions: 1,
+    missingImages: 0,
+  });
+  assert.deepEqual(dashboard.financials, {
+    totalAcquisitionCostMinor: 1500,
+    totalAskingValueMinor: 2500,
+    totalNetSaleProceedsMinor: 2200,
+    totalProfitMinor: 700,
+  });
+});

apps/api/tests/http/dashboard-routes.test.js

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+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import { buildApp } from '../../src/app/build-app.js';
+
+test('returns a seller-scoped dashboard', async (testContext) => {
+  const app = buildApp({
+    authenticateAdmin: async () => ({ sellerId: 'seller-1' }),
+    dashboardService: { async get({ sellerId }) { assert.equal(sellerId, 'seller-1'); return { counts: {}, financials: {}, recentSales: [], recentAcquisitions: [] }; } },
+  });
+  testContext.after(() => app.close());
+
+  const response = await app.inject({ method: 'GET', url: '/api/v1/admin/dashboard' });
+  assert.equal(response.statusCode, 200);
+  assert.deepEqual(response.json().data, { counts: {}, financials: {}, recentSales: [], recentAcquisitions: [] });
+});