♻️ 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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✅ Ready for Easypanel deployment (no root dir needed)

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

dealplustech-astro/node_modules/regex/dist/esm/pattern.d.ts

@@ -1,43 +0,0 @@
-export class Pattern {
-    /** @param {string} value */
-    constructor(value: string);
-    /** @returns {string} */
-    toString(): string;
-    #private;
-}
-/**
-Returns a value that can be interpolated into a `regex` template string without having its special
-characters escaped.
-
-Can be called as a function or template tag:
-- `pattern(value)` - String or value coerced to string.
-- `` pattern`…` `` - Same as ``pattern(String.raw`…`)``.
-
-@overload
-@param {string | number} value
-@returns {Pattern}
-
-@overload
-@param {TemplateStringsArray} template
-@param {...string} substitutions
-@returns {Pattern}
-*/
-export function pattern(value: string | number): Pattern;
-/**
-Returns a value that can be interpolated into a `regex` template string without having its special
-characters escaped.
-
-Can be called as a function or template tag:
-- `pattern(value)` - String or value coerced to string.
-- `` pattern`…` `` - Same as ``pattern(String.raw`…`)``.
-
-@overload
-@param {string | number} value
-@returns {Pattern}
-
-@overload
-@param {TemplateStringsArray} template
-@param {...string} substitutions
-@returns {Pattern}
-*/
-export function pattern(template: TemplateStringsArray, ...substitutions: string[]): Pattern;