♻️ 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/@shikijs/langs/dist/xsl.mjs

@@ -1,8 +0,0 @@
-import xml from './xml.mjs'
-
-const lang = Object.freeze(JSON.parse("{\"displayName\":\"XSL\",\"name\":\"xsl\",\"patterns\":[{\"begin\":\"(<)(xsl)((:))(template)\",\"captures\":{\"1\":{\"name\":\"punctuation.definition.tag.xml\"},\"2\":{\"name\":\"entity.name.tag.namespace.xml\"},\"3\":{\"name\":\"entity.name.tag.xml\"},\"4\":{\"name\":\"punctuation.separator.namespace.xml\"},\"5\":{\"name\":\"entity.name.tag.localname.xml\"}},\"end\":\"(>)\",\"name\":\"meta.tag.xml.template\",\"patterns\":[{\"captures\":{\"1\":{\"name\":\"entity.other.attribute-name.namespace.xml\"},\"2\":{\"name\":\"entity.other.attribute-name.xml\"},\"3\":{\"name\":\"punctuation.separator.namespace.xml\"},\"4\":{\"name\":\"entity.other.attribute-name.localname.xml\"}},\"match\":\" (?:([-0-9A-Z_a-z]+)((:)))?([-A-Za-z]+)\"},{\"include\":\"#doublequotedString\"},{\"include\":\"#singlequotedString\"}]},{\"include\":\"text.xml\"}],\"repository\":{\"doublequotedString\":{\"begin\":\"\\\"\",\"beginCaptures\":{\"0\":{\"name\":\"punctuation.definition.string.begin.xml\"}},\"end\":\"\\\"\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.definition.string.end.xml\"}},\"name\":\"string.quoted.double.xml\"},\"singlequotedString\":{\"begin\":\"'\",\"beginCaptures\":{\"0\":{\"name\":\"punctuation.definition.string.begin.xml\"}},\"end\":\"'\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.definition.string.end.xml\"}},\"name\":\"string.quoted.single.xml\"}},\"scopeName\":\"text.xml.xsl\",\"embeddedLangs\":[\"xml\"]}"))
-
-export default [
-...xml,
-lang
-]