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

@@ -1 +0,0 @@
-!function(e){function n(e){return e.replace(/__/g,(function(){return"(?:[\\w-]+|'[^'\n\r]*'|\"(?:\\\\.|[^\\\\\"\r\n])*\")"}))}e.languages.toml={comment:{pattern:/#.*/,greedy:!0},table:{pattern:RegExp(n("(^[\t ]*\\[\\s*(?:\\[\\s*)?)__(?:\\s*\\.\\s*__)*(?=\\s*\\])"),"m"),lookbehind:!0,greedy:!0,alias:"class-name"},key:{pattern:RegExp(n("(^[\t ]*|[{,]\\s*)__(?:\\s*\\.\\s*__)*(?=\\s*=)"),"m"),lookbehind:!0,greedy:!0,alias:"property"},string:{pattern:/"""(?:\\[\s\S]|[^\\])*?"""|'''[\s\S]*?'''|'[^'\n\r]*'|"(?:\\.|[^\\"\r\n])*"/,greedy:!0},date:[{pattern:/\b\d{4}-\d{2}-\d{2}(?:[T\s]\d{2}:\d{2}:\d{2}(?:\.\d+)?(?:Z|[+-]\d{2}:\d{2})?)?\b/i,alias:"number"},{pattern:/\b\d{2}:\d{2}:\d{2}(?:\.\d+)?\b/,alias:"number"}],number:/(?:\b0(?:x[\da-zA-Z]+(?:_[\da-zA-Z]+)*|o[0-7]+(?:_[0-7]+)*|b[10]+(?:_[10]+)*))\b|[-+]?\b\d+(?:_\d+)*(?:\.\d+(?:_\d+)*)?(?:[eE][+-]?\d+(?:_\d+)*)?\b|[-+]?\b(?:inf|nan)\b/,boolean:/\b(?:false|true)\b/,punctuation:/[.,=[\]{}]/}}(Prism);