♻️ Restructure: Move Astro to repository root

BREAKING CHANGE: Astro project is now at repository root
- Removed dealplustech-astro subdirectory
- Moved all Astro files to root
- Updated PostCSS config to .cjs
- Removed old Next.js files

✅ 11 pages built successfully
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✅ Privacy/Terms links in footer
✅ Ready for Easypanel deployment (no root dir needed)

Migration path:
- Old structure: /dealplustech-astro/
- New structure: / (root)

dealplustech-astro/node_modules/zod/src/v3/tests/optional.test.ts

@@ -1,42 +0,0 @@
-// @ts-ignore TS6133
-import { expect, test } from "vitest";
-
-import * as z from "zod/v3";
-
-function checkErrors(a: z.ZodTypeAny, bad: any) {
-  let expected: any;
-  try {
-    a.parse(bad);
-  } catch (error) {
-    expected = (error as z.ZodError).formErrors;
-  }
-  try {
-    a.optional().parse(bad);
-  } catch (error) {
-    expect((error as z.ZodError).formErrors).toEqual(expected);
-  }
-}
-
-test("Should have error messages appropriate for the underlying type", () => {
-  checkErrors(z.string().min(2), 1);
-  z.string().min(2).optional().parse(undefined);
-  checkErrors(z.number().gte(2), 1);
-  z.number().gte(2).optional().parse(undefined);
-  checkErrors(z.boolean(), "");
-  z.boolean().optional().parse(undefined);
-  checkErrors(z.undefined(), null);
-  z.undefined().optional().parse(undefined);
-  checkErrors(z.null(), {});
-  z.null().optional().parse(undefined);
-  checkErrors(z.object({}), 1);
-  z.object({}).optional().parse(undefined);
-  checkErrors(z.tuple([]), 1);
-  z.tuple([]).optional().parse(undefined);
-  checkErrors(z.unknown(), 1);
-  z.unknown().optional().parse(undefined);
-});
-
-test("unwrap", () => {
-  const unwrapped = z.string().optional().unwrap();
-  expect(unwrapped).toBeInstanceOf(z.ZodString);
-});