♻️ 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/yargs-parser/build/lib/string-utils.js

@@ -1,65 +0,0 @@
-/**
- * @license
- * Copyright (c) 2016, Contributors
- * SPDX-License-Identifier: ISC
- */
-export function camelCase(str) {
-    // Handle the case where an argument is provided as camel case, e.g., fooBar.
-    // by ensuring that the string isn't already mixed case:
-    const isCamelCase = str !== str.toLowerCase() && str !== str.toUpperCase();
-    if (!isCamelCase) {
-        str = str.toLowerCase();
-    }
-    if (str.indexOf('-') === -1 && str.indexOf('_') === -1) {
-        return str;
-    }
-    else {
-        let camelcase = '';
-        let nextChrUpper = false;
-        const leadingHyphens = str.match(/^-+/);
-        for (let i = leadingHyphens ? leadingHyphens[0].length : 0; i < str.length; i++) {
-            let chr = str.charAt(i);
-            if (nextChrUpper) {
-                nextChrUpper = false;
-                chr = chr.toUpperCase();
-            }
-            if (i !== 0 && (chr === '-' || chr === '_')) {
-                nextChrUpper = true;
-            }
-            else if (chr !== '-' && chr !== '_') {
-                camelcase += chr;
-            }
-        }
-        return camelcase;
-    }
-}
-export function decamelize(str, joinString) {
-    const lowercase = str.toLowerCase();
-    joinString = joinString || '-';
-    let notCamelcase = '';
-    for (let i = 0; i < str.length; i++) {
-        const chrLower = lowercase.charAt(i);
-        const chrString = str.charAt(i);
-        if (chrLower !== chrString && i > 0) {
-            notCamelcase += `${joinString}${lowercase.charAt(i)}`;
-        }
-        else {
-            notCamelcase += chrString;
-        }
-    }
-    return notCamelcase;
-}
-export function looksLikeNumber(x) {
-    if (x === null || x === undefined)
-        return false;
-    // if loaded from config, may already be a number.
-    if (typeof x === 'number')
-        return true;
-    // hexadecimal.
-    if (/^0x[0-9a-f]+$/i.test(x))
-        return true;
-    // don't treat 0123 as a number; as it drops the leading '0'.
-    if (/^0[^.]/.test(x))
-        return false;
-    return /^[-]?(?:\d+(?:\.\d*)?|\.\d+)(e[-+]?\d+)?$/.test(x);
-}