♻️ 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/mrmime/package.json

@@ -1,44 +0,0 @@
-{
-  "name": "mrmime",
-  "version": "2.0.1",
-  "repository": "lukeed/mrmime",
-  "description": "A tiny (2.8kB) and fast utility for getting a MIME type from an extension or filename",
-  "module": "index.mjs",
-  "types": "index.d.ts",
-  "main": "index.js",
-  "license": "MIT",
-  "author": {
-    "name": "Luke Edwards",
-    "email": "luke.edwards05@gmail.com",
-    "url": "https://lukeed.com"
-  },
-  "exports": {
-    ".": {
-      "types": "./index.d.ts",
-      "import": "./index.mjs",
-      "require": "./index.js"
-    },
-    "./package.json": "./package.json"
-  },
-  "files": [
-    "index.d.ts",
-    "index.mjs",
-    "index.js"
-  ],
-  "engines": {
-    "node": ">=10"
-  },
-  "scripts": {
-    "build": "tsm bin/index.ts",
-    "test": "uvu -r tsm test"
-  },
-  "keywords": [
-    "mime",
-    "extension",
-    "mimetype"
-  ],
-  "devDependencies": {
-    "tsm": "2.3.0",
-    "uvu": "0.5.2"
-  }
-}