feat: add admin authentication and management features

- Implemented Prisma schema with models for AdminUser, AppSettings, and Snapshot.
- Created seed script to initialize the database with an admin user and JWT secret.
- Developed admin login page with form handling and error management.
- Added API routes for admin login, logout, change password, and JWT verification.
- Integrated Stripe for payment intent management in admin orders.
- Established middleware for protecting admin routes with JWT authentication.
- Created Zustand stores for managing persona and snapshot states.

prisma.config.ts

@@ -0,0 +1,11 @@
+import { defineConfig } from "prisma/config";
+
+export default defineConfig({
+  schema: "prisma/schema.prisma",
+  migrations: {
+    path: "prisma/migrations",
+  },
+  datasource: {
+    url: "file:./prisma/lootah.db",
+  },
+});