♻️ 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
✅ Cookie consent banner included
✅ 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/astro/dist/cli/throw-and-exit.js

@@ -1,25 +0,0 @@
-import { collectErrorMetadata } from "../core/errors/dev/index.js";
-import { isAstroConfigZodError } from "../core/errors/errors.js";
-import { createSafeError } from "../core/errors/index.js";
-import { debug } from "../core/logger/core.js";
-import { formatErrorMessage } from "../core/messages.js";
-import { eventError, telemetry } from "../events/index.js";
-async function throwAndExit(cmd, err) {
-  if (isAstroConfigZodError(err)) {
-    process.exit(1);
-  }
-  let telemetryPromise;
-  let errorMessage;
-  function exitWithErrorMessage() {
-    console.error(errorMessage);
-    process.exit(1);
-  }
-  const errorWithMetadata = collectErrorMetadata(createSafeError(err));
-  telemetryPromise = telemetry.record(eventError({ cmd, err: errorWithMetadata, isFatal: true }));
-  errorMessage = formatErrorMessage(errorWithMetadata, true);
-  setTimeout(exitWithErrorMessage, 400);
-  await telemetryPromise.catch((err2) => debug("telemetry", `record() error: ${err2.message}`)).then(exitWithErrorMessage);
-}
-export {
-  throwAndExit
-};