♻️ 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
✅ Cookie consent banner included
✅ 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/clsx/dist/clsx.min.js

@@ -1 +0,0 @@
-!function(e,n){"object"==typeof exports&&"undefined"!=typeof module?module.exports=n():"function"==typeof define&&define.amd?define(n):e.clsx=n()}(this,(function(){function e(n){var t,f,o="";if("string"==typeof n||"number"==typeof n)o+=n;else if("object"==typeof n)if(Array.isArray(n)){var r=n.length;for(t=0;t<r;t++)n[t]&&(f=e(n[t]))&&(o&&(o+=" "),o+=f)}else for(f in n)n[f]&&(o&&(o+=" "),o+=f);return o}function n(){for(var n,t,f=0,o="",r=arguments.length;f<r;f++)(n=arguments[f])&&(t=e(n))&&(o&&(o+=" "),o+=t);return o}return n.clsx=n,n}));