♻️ 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

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✅ Ready for Easypanel deployment (no root dir needed)

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

dealplustech-astro/node_modules/micromark-util-resolve-all/index.d.ts

@@ -1,22 +0,0 @@
-/**
- * @import {Event, Resolver, TokenizeContext} from 'micromark-util-types'
- */
-/**
- * Call all `resolveAll`s.
- *
- * @param {ReadonlyArray<{resolveAll?: Resolver | undefined}>} constructs
- *   List of constructs, optionally with `resolveAll`s.
- * @param {Array<Event>} events
- *   List of events.
- * @param {TokenizeContext} context
- *   Context used by `tokenize`.
- * @returns {Array<Event>}
- *   Changed events.
- */
-export function resolveAll(constructs: ReadonlyArray<{
-    resolveAll?: Resolver | undefined;
-}>, events: Array<Event>, context: TokenizeContext): Array<Event>;
-import type { Resolver } from 'micromark-util-types';
-import type { Event } from 'micromark-util-types';
-import type { TokenizeContext } from 'micromark-util-types';
-//# sourceMappingURL=index.d.ts.map