feat: add admin dashboard summary

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

apps/web/src/pages/AdminHomePage.vue

@@ -8,6 +8,7 @@ import { createAdminInventory, createAdminProduct, listAdminCategories, listAdmi
 import { createAdminListing, listAdminListings, markListingPending, publishAdminListing } from '@/services/admin-listing-service.js';
 import { createAdminSale, listAdminSales, voidAdminSale } from '@/services/admin-sale-service.js';
 import { createAdminAcquisition, listAdminAcquisitions } from '@/services/admin-acquisition-service.js';
+import { getAdminDashboard } from '@/services/admin-dashboard-service.js';
 
 const { principal } = useAuth();
 const products = ref([]);
@@ -15,6 +16,7 @@ const inventory = ref([]);
 const listings = ref([]);
 const sales = ref([]);
 const acquisitions = ref([]);
+const dashboard = ref(null);
 const categories = ref([]);
 const conditions = ref([]);
 const isLoading = ref(true);
@@ -45,7 +47,7 @@ function csrfToken() {
 async function load() {
   isLoading.value = true;
   try {
-    [products.value, inventory.value, categories.value, conditions.value, listings.value, sales.value, acquisitions.value] = await Promise.all([listAdminProducts(), listAdminInventory(), listAdminCategories(), listAdminConditions(), listAdminListings(), listAdminSales(), listAdminAcquisitions()]);
+    [products.value, inventory.value, categories.value, conditions.value, listings.value, sales.value, acquisitions.value, dashboard.value] = await Promise.all([listAdminProducts(), listAdminInventory(), listAdminCategories(), listAdminConditions(), listAdminListings(), listAdminSales(), listAdminAcquisitions(), getAdminDashboard()]);
   } catch (requestError) { error.value = requestError; }
   finally { isLoading.value = false; }
 }
@@ -154,6 +156,20 @@ onMounted(load);
     <p v-if="isLoading" class="state state--loading" role="status">Loading inventory...</p>
     <p v-if="error" class="state state--error" role="alert">{{ error.message }}</p>
 
+    <section v-if="dashboard" class="dashboard-summary" aria-labelledby="dashboard-summary-title">
+      <h2 id="dashboard-summary-title">At a glance</h2>
+      <dl class="dashboard-summary__grid">
+        <div><dt>Active inventory</dt><dd>{{ dashboard.counts.activeInventory }}</dd></div>
+        <div><dt>Available listings</dt><dd>{{ dashboard.counts.availableListings }}</dd></div>
+        <div><dt>Sold inventory</dt><dd>{{ dashboard.counts.soldInventory }}</dd></div>
+        <div><dt>Missing images</dt><dd>{{ dashboard.counts.missingImages }}</dd></div>
+        <div><dt>Acquisition cost</dt><dd>${{ (dashboard.financials.totalAcquisitionCostMinor / 100).toFixed(2) }}</dd></div>
+        <div><dt>Asking value</dt><dd>${{ (dashboard.financials.totalAskingValueMinor / 100).toFixed(2) }}</dd></div>
+        <div><dt>Net proceeds</dt><dd>${{ (dashboard.financials.totalNetSaleProceedsMinor / 100).toFixed(2) }}</dd></div>
+        <div><dt>Profit</dt><dd>${{ (dashboard.financials.totalProfitMinor / 100).toFixed(2) }}</dd></div>
+      </dl>
+    </section>
+
     <div class="admin-workspace-grid">
       <form class="showcase-panel" @submit.prevent="createProduct">
         <h2>Add product</h2>
@@ -275,3 +291,12 @@ onMounted(load);
     </section>
   </section>
 </template>
+
+<style scoped lang="scss">
+.dashboard-summary { margin: var(--space-6) 0; }
+.dashboard-summary h2 { margin-bottom: var(--space-3); }
+.dashboard-summary__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); gap: var(--space-3); margin: 0; }
+.dashboard-summary__grid div { border: var(--border-thin) solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-3); background: var(--color-surface); }
+.dashboard-summary__grid dt { color: var(--color-text-muted); font-size: var(--text-sm); }
+.dashboard-summary__grid dd { margin: var(--space-2) 0 0; font-size: var(--text-xl); font-weight: 700; }
+</style>

apps/web/src/services/admin-dashboard-service.js

@@ -0,0 +1,8 @@
+const apiBaseUrl = import.meta.env?.VITE_API_BASE_URL ?? '/api/v1';
+
+export async function getAdminDashboard() {
+  const response = await fetch(`${apiBaseUrl}/admin/dashboard`, { credentials: 'include' });
+  const payload = await response.json().catch(() => null);
+  if (!response.ok) throw new Error(payload?.error?.message ?? 'Dashboard request failed.');
+  return payload?.data;
+}