♻️ 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-bqn.min.js

@@ -1 +0,0 @@
-Prism.languages.bqn={shebang:{pattern:/^#![ \t]*\/.*/,alias:"important",greedy:!0},comment:{pattern:/#.*/,greedy:!0},"string-literal":{pattern:/"(?:[^"]|"")*"/,greedy:!0,alias:"string"},"character-literal":{pattern:/'(?:[\s\S]|[\uD800-\uDBFF][\uDC00-\uDFFF])'/,greedy:!0,alias:"char"},function:/•[\w¯.∞π]+[\w¯.∞π]*/,"dot-notation-on-brackets":{pattern:/\{(?=.*\}\.)|\}\./,alias:"namespace"},"special-name":{pattern:/(?:𝕨|𝕩|𝕗|𝕘|𝕤|𝕣|𝕎|𝕏|𝔽|𝔾|𝕊|_𝕣_|_𝕣)/,alias:"keyword"},"dot-notation-on-name":{pattern:/[A-Za-z_][\w¯∞π]*\./,alias:"namespace"},"word-number-scientific":{pattern:/\d+(?:\.\d+)?[eE]¯?\d+/,alias:"number"},"word-name":{pattern:/[A-Za-z_][\w¯∞π]*/,alias:"symbol"},"word-number":{pattern:/[¯∞π]?(?:\d*\.?\b\d+(?:e[+¯]?\d+|E[+¯]?\d+)?|¯|∞|π)(?:j¯?(?:(?:\d+(?:\.\d+)?|\.\d+)(?:e[+¯]?\d+|E[+¯]?\d+)?|¯|∞|π))?/,alias:"number"},"null-literal":{pattern:/@/,alias:"char"},"primitive-functions":{pattern:/[-+×÷⋆√⌊⌈|¬∧∨<>≠=≤≥≡≢⊣⊢⥊∾≍⋈↑↓↕«»⌽⍉/⍋⍒⊏⊑⊐⊒∊⍷⊔!]/,alias:"operator"},"primitive-1-operators":{pattern:/[`˜˘¨⁼⌜´˝˙]/,alias:"operator"},"primitive-2-operators":{pattern:/[∘⊸⟜○⌾⎉⚇⍟⊘◶⎊]/,alias:"operator"},punctuation:/[←⇐↩(){}⟨⟩[\]‿·⋄,.;:?]/};