♻️ 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/get-east-asian-width/lookup.js

@@ -1,135 +0,0 @@
-import {
-	ambiguousRanges,
-	fullwidthRanges,
-	halfwidthRanges,
-	narrowRanges,
-	wideRanges,
-} from './lookup-data.js';
-import {isInRange} from './utilities.js';
-
-const minimumAmbiguousCodePoint = ambiguousRanges[0];
-const maximumAmbiguousCodePoint = ambiguousRanges.at(-1);
-const minimumFullWidthCodePoint = fullwidthRanges[0];
-const maximumFullWidthCodePoint = fullwidthRanges.at(-1);
-const minimumHalfWidthCodePoint = halfwidthRanges[0];
-const maximumHalfWidthCodePoint = halfwidthRanges.at(-1);
-const minimumNarrowCodePoint = narrowRanges[0];
-const maximumNarrowCodePoint = narrowRanges.at(-1);
-const minimumWideCodePoint = wideRanges[0];
-const maximumWideCodePoint = wideRanges.at(-1);
-
-const commonCjkCodePoint = 0x4E_00;
-const [wideFastPathStart, wideFastPathEnd] = findWideFastPathRange(wideRanges);
-
-// Use a hot-path range so common `isWide` calls can skip binary search.
-// The range containing U+4E00 covers common CJK ideographs;
-// fallback to the largest range for resilience to Unicode table changes.
-function findWideFastPathRange(ranges) {
-	let fastPathStart = ranges[0];
-	let fastPathEnd = ranges[1];
-
-	for (let index = 0; index < ranges.length; index += 2) {
-		const start = ranges[index];
-		const end = ranges[index + 1];
-
-		if (
-			commonCjkCodePoint >= start
-			&& commonCjkCodePoint <= end
-		) {
-			return [start, end];
-		}
-
-		if ((end - start) > (fastPathEnd - fastPathStart)) {
-			fastPathStart = start;
-			fastPathEnd = end;
-		}
-	}
-
-	return [fastPathStart, fastPathEnd];
-}
-
-export const isAmbiguous = codePoint => {
-	if (
-		codePoint < minimumAmbiguousCodePoint
-		|| codePoint > maximumAmbiguousCodePoint
-	) {
-		return false;
-	}
-
-	return isInRange(ambiguousRanges, codePoint);
-};
-
-export const isFullWidth = codePoint => {
-	if (
-		codePoint < minimumFullWidthCodePoint
-		|| codePoint > maximumFullWidthCodePoint
-	) {
-		return false;
-	}
-
-	return isInRange(fullwidthRanges, codePoint);
-};
-
-const isHalfWidth = codePoint => {
-	if (
-		codePoint < minimumHalfWidthCodePoint
-		|| codePoint > maximumHalfWidthCodePoint
-	) {
-		return false;
-	}
-
-	return isInRange(halfwidthRanges, codePoint);
-};
-
-const isNarrow = codePoint => {
-	if (
-		codePoint < minimumNarrowCodePoint
-		|| codePoint > maximumNarrowCodePoint
-	) {
-		return false;
-	}
-
-	return isInRange(narrowRanges, codePoint);
-};
-
-export const isWide = codePoint => {
-	if (
-		codePoint >= wideFastPathStart
-		&& codePoint <= wideFastPathEnd
-	) {
-		return true;
-	}
-
-	if (
-		codePoint < minimumWideCodePoint
-		|| codePoint > maximumWideCodePoint
-	) {
-		return false;
-	}
-
-	return isInRange(wideRanges, codePoint);
-};
-
-export function getCategory(codePoint) {
-	if (isAmbiguous(codePoint)) {
-		return 'ambiguous';
-	}
-
-	if (isFullWidth(codePoint)) {
-		return 'fullwidth';
-	}
-
-	if (isHalfWidth(codePoint)) {
-		return 'halfwidth';
-	}
-
-	if (isNarrow(codePoint)) {
-		return 'narrow';
-	}
-
-	if (isWide(codePoint)) {
-		return 'wide';
-	}
-
-	return 'neutral';
-}