build: add CheckoutPage Storybook stories

src/pages/CheckoutPage/CheckoutPage.stories.tsx

@@ -0,0 +1,69 @@
+import {
+  withCheckoutStateDecorator,
+  withRootAppLayoutDecorator,
+  type CheckoutStateDecoratorArgs,
+} from "@/../.storybook/decorators";
+import { authenticatedUserStore } from "@/stores/authenticatedUserStore";
+import { isAuthenticatedStore } from "@/stores/isAuthenticatedStore";
+import { STATIC_MOCK_USERS } from "@/tests/mockItems/staticMockUsers";
+import { CheckoutPage, type CheckoutPageProps } from "./CheckoutPage";
+import type { Meta, StoryObj } from "@storybook/react";
+
+const meta = {
+  title: "Pages/CheckoutPage",
+  component: CheckoutPage,
+  decorators: [withRootAppLayoutDecorator, withCheckoutStateDecorator],
+  parameters: {
+    layout: "fullscreen",
+  },
+} satisfies Meta<CheckoutPageProps & CheckoutStateDecoratorArgs>;
+
+export default meta;
+
+///////////////////////////////////////////////////////////
+// STORIES
+
+type Story = StoryObj<typeof meta>;
+
+authenticatedUserStore.set(STATIC_MOCK_USERS.Guy_McPerson as any);
+isAuthenticatedStore.set(true);
+
+export const AnnualPricing = {
+  args: {
+    _checkout_state_decorator_args: {
+      checkoutState: {
+        selectedSubscription: "ANNUAL",
+        promoCode: null,
+      },
+    },
+  },
+} satisfies Story;
+
+export const MonthlyPricing = {
+  args: {
+    _checkout_state_decorator_args: {
+      checkoutState: {
+        selectedSubscription: "MONTHLY",
+        promoCode: null,
+      },
+    },
+  },
+} satisfies Story;
+
+export const TrialPricing = {
+  args: {
+    _checkout_state_decorator_args: {
+      checkoutState: {
+        selectedSubscription: "TRIAL",
+        promoCode: null,
+      },
+    },
+  },
+} satisfies Story;
+
+export const PaymentConfirmed = {
+  args: {
+    ...AnnualPricing.args,
+    showPaymentConfirmation: true,
+  },
+} satisfies Story;