♻️ 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-typoscript.min.js

@@ -1 +0,0 @@
-!function(E){var n=/\b(?:ACT|ACTIFSUB|CARRAY|CASE|CLEARGIF|COA|COA_INT|CONSTANTS|CONTENT|CUR|EDITPANEL|EFFECT|EXT|FILE|FLUIDTEMPLATE|FORM|FRAME|FRAMESET|GIFBUILDER|GMENU|GMENU_FOLDOUT|GMENU_LAYERS|GP|HMENU|HRULER|HTML|IENV|IFSUB|IMAGE|IMGMENU|IMGMENUITEM|IMGTEXT|IMG_RESOURCE|INCLUDE_TYPOSCRIPT|JSMENU|JSMENUITEM|LLL|LOAD_REGISTER|NO|PAGE|RECORDS|RESTORE_REGISTER|TEMPLATE|TEXT|TMENU|TMENUITEM|TMENU_LAYERS|USER|USER_INT|_GIFBUILDER|global|globalString|globalVar)\b/;E.languages.typoscript={comment:[{pattern:/(^|[^\\])\/\*[\s\S]*?(?:\*\/|$)/,lookbehind:!0},{pattern:/(^|[^\\:= \t]|(?:^|[^= \t])[ \t]+)\/\/.*/,lookbehind:!0,greedy:!0},{pattern:/(^|[^"'])#.*/,lookbehind:!0,greedy:!0}],function:[{pattern:/<INCLUDE_TYPOSCRIPT:\s*source\s*=\s*(?:"[^"\r\n]*"|'[^'\r\n]*')\s*>/,inside:{string:{pattern:/"[^"\r\n]*"|'[^'\r\n]*'/,inside:{keyword:n}},keyword:{pattern:/INCLUDE_TYPOSCRIPT/}}},{pattern:/@import\s*(?:"[^"\r\n]*"|'[^'\r\n]*')/,inside:{string:/"[^"\r\n]*"|'[^'\r\n]*'/}}],string:{pattern:/^([^=]*=[< ]?)(?:(?!\]\n).)*/,lookbehind:!0,inside:{function:/\{\$.*\}/,keyword:n,number:/^\d+$/,punctuation:/[,|:]/}},keyword:n,number:{pattern:/\b\d+\s*[.{=]/,inside:{operator:/[.{=]/}},tag:{pattern:/\.?[-\w\\]+\.?/,inside:{punctuation:/\./}},punctuation:/[{}[\];(),.:|]/,operator:/[<>]=?|[!=]=?=?|--?|\+\+?|&&?|\|\|?|[?*/~^%]/},E.languages.tsconfig=E.languages.typoscript}(Prism);