feat(admin): add image quota management UI on memind_adm 5174

Add image-quota admin pages and API wiring for plan defaults, ledger, and per-user
grants, plus local verify scripts and AGENTS.md note that this repo is the sole
admin UI surface.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/api/client.ts

@@ -12,6 +12,8 @@ import type {
   CapabilityDefinition,
   CapabilityMap,
   InsufficientBalanceDetails,
+  ImageQuotaLedgerEntry,
+  ImageQuotaView,
   LedgerEntry,
   LlmConnectionTestResult,
   LlmExecutorBinding,
@@ -1351,3 +1353,51 @@ export async function getUserSubscription(userId: string): Promise<AdminSubscrip
   );
   return result.subscription;
 }
+
+export async function fetchImageQuotaConfig() {
+  return portalFetch<{ plans: PlanDefinition[] }>('/admin-api/image-quota/config');
+}
+
+export async function patchImageQuotaPlan(planType: string, periodImages: number) {
+  return portalFetch<{ ok: boolean; plan: PlanDefinition }>(`/admin-api/image-quota/config/${planType}`, {
+    method: 'PATCH',
+    body: JSON.stringify({ periodImages }),
+  });
+}
+
+export async function fetchUserImageQuota(userId: string) {
+  return portalFetch<{
+    subscription: AdminSubscription;
+    quota: ImageQuotaView;
+    ledger: ImageQuotaLedgerEntry[];
+  }>(`/admin-api/users/${userId}/image-quota`);
+}
+
+export async function grantUserImageQuota(userId: string, delta: number, note = '') {
+  return portalFetch<{
+    ok: boolean;
+    subscription: AdminSubscription;
+    quota: ImageQuotaView;
+  }>(`/admin-api/users/${userId}/image-quota/grant`, {
+    method: 'POST',
+    body: JSON.stringify({ delta, note }),
+  });
+}
+
+export async function fetchImageQuotaLedger(params: {
+  userId?: string;
+  page?: number;
+  pageSize?: number;
+} = {}) {
+  const q = new URLSearchParams();
+  if (params.userId) q.set('userId', params.userId);
+  if (params.page) q.set('page', String(params.page));
+  if (params.pageSize) q.set('pageSize', String(params.pageSize));
+  return portalFetch<{
+    entries: ImageQuotaLedgerEntry[];
+    total: number;
+    page: number;
+    pageSize: number;
+    totalPages: number;
+  }>(`/admin-api/image-quota/ledger${q.toString() ? `?${q}` : ''}`);
+}