♻️ 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/prismjs/components/prism-jsdoc.min.js

@@ -1 +0,0 @@
-!function(e){var a=e.languages.javascript,n="\\{(?:[^{}]|\\{(?:[^{}]|\\{[^{}]*\\})*\\})+\\}",t="(@(?:arg|argument|param|property)\\s+(?:"+n+"\\s+)?)";e.languages.jsdoc=e.languages.extend("javadoclike",{parameter:{pattern:RegExp(t+"(?:(?!\\s)[$\\w\\xA0-\\uFFFF.])+(?=\\s|$)"),lookbehind:!0,inside:{punctuation:/\./}}}),e.languages.insertBefore("jsdoc","keyword",{"optional-parameter":{pattern:RegExp(t+"\\[(?:(?!\\s)[$\\w\\xA0-\\uFFFF.])+(?:=[^[\\]]+)?\\](?=\\s|$)"),lookbehind:!0,inside:{parameter:{pattern:/(^\[)[$\w\xA0-\uFFFF\.]+/,lookbehind:!0,inside:{punctuation:/\./}},code:{pattern:/(=)[\s\S]*(?=\]$)/,lookbehind:!0,inside:a,alias:"language-javascript"},punctuation:/[=[\]]/}},"class-name":[{pattern:RegExp("(@(?:augments|class|extends|interface|memberof!?|template|this|typedef)\\s+(?:<TYPE>\\s+)?)[A-Z]\\w*(?:\\.[A-Z]\\w*)*".replace(/<TYPE>/g,(function(){return n}))),lookbehind:!0,inside:{punctuation:/\./}},{pattern:RegExp("(@[a-z]+\\s+)"+n),lookbehind:!0,inside:{string:a.string,number:a.number,boolean:a.boolean,keyword:e.languages.typescript.keyword,operator:/=>|\.\.\.|[&|?:*]/,punctuation:/[.,;=<>{}()[\]]/}}],example:{pattern:/(@example\s+(?!\s))(?:[^@\s]|\s+(?!\s))+?(?=\s*(?:\*\s*)?(?:@\w|\*\/))/,lookbehind:!0,inside:{code:{pattern:/^([\t ]*(?:\*\s*)?)\S.*$/m,lookbehind:!0,inside:a,alias:"language-javascript"}}}}),e.languages.javadoclike.addSupport("javascript",e.languages.jsdoc)}(Prism);