♻️ 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

✅ 11 pages built successfully
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✅ Privacy/Terms links in footer
✅ Ready for Easypanel deployment (no root dir needed)

Migration path:
- Old structure: /dealplustech-astro/
- New structure: / (root)

dealplustech-astro/node_modules/semver/ranges/to-comparators.js

@@ -1,10 +0,0 @@
-'use strict'
-
-const Range = require('../classes/range')
-
-// Mostly just for testing and legacy API reasons
-const toComparators = (range, options) =>
-  new Range(range, options).set
-    .map(comp => comp.map(c => c.value).join(' ').trim().split(' '))
-
-module.exports = toComparators