♻️ 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/astro/dist/events/error.d.ts

@@ -1,30 +0,0 @@
-import type { ZodError } from 'zod';
-import { type ErrorWithMetadata } from '../core/errors/index.js';
-interface ErrorEventPayload {
-    name: string;
-    isFatal: boolean;
-    plugin?: string | undefined;
-    cliCommand: string;
-    anonymousMessageHint?: string | undefined;
-}
-interface ConfigErrorEventPayload extends ErrorEventPayload {
-    isConfig: true;
-    configErrorPaths: string[];
-}
-export declare function eventConfigError({ err, cmd, isFatal, }: {
-    err: ZodError;
-    cmd: string;
-    isFatal: boolean;
-}): {
-    eventName: string;
-    payload: ConfigErrorEventPayload;
-}[];
-export declare function eventError({ cmd, err, isFatal, }: {
-    err: ErrorWithMetadata;
-    cmd: string;
-    isFatal: boolean;
-}): {
-    eventName: string;
-    payload: ErrorEventPayload;
-}[];
-export {};