♻️ 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/@esbuild/darwin-arm64/README.md

@@ -1,3 +0,0 @@
-# esbuild
-
-This is the macOS ARM 64-bit binary for esbuild, a JavaScript bundler and minifier. See https://github.com/evanw/esbuild for details.

dealplustech-astro/node_modules/@esbuild/darwin-arm64/package.json

@@ -1,20 +0,0 @@
-{
-  "name": "@esbuild/darwin-arm64",
-  "version": "0.27.3",
-  "description": "The macOS ARM 64-bit binary for esbuild, a JavaScript bundler.",
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/evanw/esbuild.git"
-  },
-  "license": "MIT",
-  "preferUnplugged": true,
-  "engines": {
-    "node": ">=18"
-  },
-  "os": [
-    "darwin"
-  ],
-  "cpu": [
-    "arm64"
-  ]
-}