♻️ 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/@shikijs/langs/dist/qmldir.mjs

@@ -1,5 +0,0 @@
-const lang = Object.freeze(JSON.parse("{\"displayName\":\"QML Directory\",\"name\":\"qmldir\",\"patterns\":[{\"include\":\"#comment\"},{\"include\":\"#keywords\"},{\"include\":\"#version\"},{\"include\":\"#names\"}],\"repository\":{\"comment\":{\"patterns\":[{\"begin\":\"#\",\"end\":\"$\",\"name\":\"comment.line.number-sign.qmldir\"}]},\"file-name\":{\"patterns\":[{\"match\":\"\\\\b\\\\w+\\\\.(qmltypes|qml|js)\\\\b\",\"name\":\"string.unquoted.qmldir\"}]},\"identifier\":{\"patterns\":[{\"match\":\"\\\\b\\\\w+\\\\b\",\"name\":\"variable.parameter.qmldir\"}]},\"keywords\":{\"patterns\":[{\"match\":\"\\\\b(module|singleton|internal|plugin|classname|typeinfo|depends|designersupported)\\\\b\",\"name\":\"keyword.other.qmldir\"}]},\"module-name\":{\"patterns\":[{\"match\":\"\\\\b[A-Z]\\\\w*\\\\b\",\"name\":\"entity.name.type.qmldir\"}]},\"names\":{\"patterns\":[{\"include\":\"#file-name\"},{\"include\":\"#module-name\"},{\"include\":\"#identifier\"}]},\"version\":{\"patterns\":[{\"match\":\"\\\\b\\\\d+\\\\.\\\\d+\\\\b\",\"name\":\"constant.numeric.qml\"}]}},\"scopeName\":\"source.qmldir\"}"))
-
-export default [
-lang
-]