♻️ 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/erb.mjs

@@ -1,10 +0,0 @@
-import html from './html.mjs'
-import ruby from './ruby.mjs'
-
-const lang = Object.freeze(JSON.parse("{\"displayName\":\"ERB\",\"fileTypes\":[\"erb\",\"rhtml\",\"html.erb\"],\"injections\":{\"text.html.erb - (meta.embedded.block.erb | meta.embedded.line.erb | comment)\":{\"patterns\":[{\"begin\":\"^(\\\\s*)(?=<%+#(?![^%]*%>))\",\"beginCaptures\":{\"0\":{\"name\":\"punctuation.whitespace.comment.leading.erb\"}},\"end\":\"(?!\\\\G)(\\\\s*$\\\\n)?\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.whitespace.comment.trailing.erb\"}},\"patterns\":[{\"include\":\"#comment\"}]},{\"begin\":\"^(\\\\s*)(?=<%(?![^%]*%>))\",\"beginCaptures\":{\"0\":{\"name\":\"punctuation.whitespace.embedded.leading.erb\"}},\"end\":\"(?!\\\\G)(\\\\s*$\\\\n)?\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.whitespace.embedded.trailing.erb\"}},\"patterns\":[{\"include\":\"#tags\"}]},{\"include\":\"#comment\"},{\"include\":\"#tags\"}]}},\"name\":\"erb\",\"patterns\":[{\"include\":\"text.html.basic\"}],\"repository\":{\"comment\":{\"patterns\":[{\"begin\":\"<%+#\",\"beginCaptures\":{\"0\":{\"name\":\"punctuation.definition.comment.begin.erb\"}},\"end\":\"%>\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.definition.comment.end.erb\"}},\"name\":\"comment.block.erb\"}]},\"tags\":{\"patterns\":[{\"begin\":\"<%+(?!>)[-=]?(?![^%]*%>)\",\"beginCaptures\":{\"0\":{\"name\":\"punctuation.section.embedded.begin.erb\"}},\"contentName\":\"source.ruby\",\"end\":\"(-?%)>\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.section.embedded.end.erb\"},\"1\":{\"name\":\"source.ruby\"}},\"name\":\"meta.embedded.block.erb\",\"patterns\":[{\"captures\":{\"1\":{\"name\":\"punctuation.definition.comment.erb\"}},\"match\":\"(#).*?(?=-?%>)\",\"name\":\"comment.line.number-sign.erb\"},{\"include\":\"source.ruby\"}]},{\"begin\":\"<%+(?!>)[-=]?\",\"beginCaptures\":{\"0\":{\"name\":\"punctuation.section.embedded.begin.erb\"}},\"contentName\":\"source.ruby\",\"end\":\"(-?%)>\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.section.embedded.end.erb\"},\"1\":{\"name\":\"source.ruby\"}},\"name\":\"meta.embedded.line.erb\",\"patterns\":[{\"captures\":{\"1\":{\"name\":\"punctuation.definition.comment.erb\"}},\"match\":\"(#).*?(?=-?%>)\",\"name\":\"comment.line.number-sign.erb\"},{\"include\":\"source.ruby\"}]}]}},\"scopeName\":\"text.html.erb\",\"embeddedLangs\":[\"html\",\"ruby\"]}"))
-
-export default [
-...html,
-...ruby,
-lang
-]