♻️ 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-tap.js

@@ -1,22 +0,0 @@
-// https://en.wikipedia.org/wiki/Test_Anything_Protocol
-
-Prism.languages.tap = {
-	'fail': /not ok[^#{\n\r]*/,
-	'pass': /ok[^#{\n\r]*/,
-	'pragma': /pragma [+-][a-z]+/,
-	'bailout': /bail out!.*/i,
-	'version': /TAP version \d+/i,
-	'plan': /\b\d+\.\.\d+(?: +#.*)?/,
-	'subtest': {
-		pattern: /# Subtest(?:: .*)?/,
-		greedy: true
-	},
-	'punctuation': /[{}]/,
-	'directive': /#.*/,
-	'yamlish': {
-		pattern: /(^[ \t]*)---[\s\S]*?[\r\n][ \t]*\.\.\.$/m,
-		lookbehind: true,
-		inside: Prism.languages.yaml,
-		alias: 'language-yaml'
-	}
-};