feat: add local auth billing and usage management

app/api/admin/billing/route.ts

@@ -0,0 +1,49 @@
+import { jsonError, jsonOk } from "@/lib/server/api";
+import { requireSuperAdminSession } from "@/lib/server/auth/current-user";
+import { listPlatformOrganizations, listPlatformUsers } from "@/lib/server/account-store";
+import { listBillingLedgerEntries, listBillingPriceRules, listOrganizationWallets } from "@/lib/server/billing-store";
+import { ensureDefaultBillingPriceRules } from "@/lib/server/billing-catalog";
+import { getBillingAccountConfig } from "@/lib/server/billing-service";
+
+export const runtime = "nodejs";
+export const dynamic = "force-dynamic";
+
+export async function GET() {
+  try {
+    await requireSuperAdminSession();
+    await ensureDefaultBillingPriceRules();
+    const [organizations, wallets, members, ledger, priceRules] = await Promise.all([
+      listPlatformOrganizations({ includeDisabled: true }),
+      listOrganizationWallets(),
+      listPlatformUsers({ includeDisabled: true }),
+      listBillingLedgerEntries({ limit: 500 }),
+      listBillingPriceRules({ includeDisabled: true })
+    ]);
+    const walletByOrganization = new Map(wallets.map((wallet) => [wallet.organizationId, wallet]));
+    return jsonOk({
+      billingAccount: getBillingAccountConfig(),
+      organizations: organizations.map((organization) => ({
+        ...organization,
+        wallet: walletByOrganization.get(organization.id) || {
+          organizationId: organization.id,
+          balanceFen: 0,
+          totalRechargedFen: 0,
+          totalChargedFen: 0,
+          updatedAt: organization.updatedAt
+        }
+      })),
+      members: members.map((member) => ({
+        id: member.id,
+        displayName: member.displayName,
+        phone: member.phone,
+        role: member.role,
+        organizationId: member.organizationId || null,
+        status: member.status
+      })),
+      ledger,
+      priceRules
+    });
+  } catch (error) {
+    return jsonError(error, 500, { source: "api.admin.billing" });
+  }
+}