♻️ 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-openqasm.min.js

@@ -1 +0,0 @@
-Prism.languages.openqasm={comment:/\/\*[\s\S]*?\*\/|\/\/.*/,string:{pattern:/"[^"\r\n\t]*"|'[^'\r\n\t]*'/,greedy:!0},keyword:/\b(?:CX|OPENQASM|U|barrier|boxas|boxto|break|const|continue|ctrl|def|defcal|defcalgrammar|delay|else|end|for|gate|gphase|if|in|include|inv|kernel|lengthof|let|measure|pow|reset|return|rotary|stretchinf|while)\b|#pragma\b/,"class-name":/\b(?:angle|bit|bool|creg|fixed|float|int|length|qreg|qubit|stretch|uint)\b/,function:/\b(?:cos|exp|ln|popcount|rotl|rotr|sin|sqrt|tan)\b(?=\s*\()/,constant:/\b(?:euler|pi|tau)\b|π|𝜏|ℇ/,number:{pattern:/(^|[^.\w$])(?:\d+(?:\.\d*)?|\.\d+)(?:e[+-]?\d+)?(?:dt|ns|us|µs|ms|s)?/i,lookbehind:!0},operator:/->|>>=?|<<=?|&&|\|\||\+\+|--|[!=<>&|~^+\-*/%]=?|@/,punctuation:/[(){}\[\];,:.]/},Prism.languages.qasm=Prism.languages.openqasm;