refactor: Move Astro to root, use PORT env (default 80), allow all hosts

- Move Astro files from dealplustech-astro/ to project root
- Update Dockerfile: PORT environment variable (default 80)
- Add vite.config.ts with allowedHosts: true
- Matches nixpacks behavior for Easypanel deployment
- No hardcoded ports or domains

node_modules/prismjs/components/prism-less.js

@@ -0,0 +1,54 @@
+/* FIXME :
+ :extend() is not handled specifically : its highlighting is buggy.
+ Mixin usage must be inside a ruleset to be highlighted.
+ At-rules (e.g. import) containing interpolations are buggy.
+ Detached rulesets are highlighted as at-rules.
+ A comment before a mixin usage prevents the latter to be properly highlighted.
+ */
+
+Prism.languages.less = Prism.languages.extend('css', {
+	'comment': [
+		/\/\*[\s\S]*?\*\//,
+		{
+			pattern: /(^|[^\\])\/\/.*/,
+			lookbehind: true
+		}
+	],
+	'atrule': {
+		pattern: /@[\w-](?:\((?:[^(){}]|\([^(){}]*\))*\)|[^(){};\s]|\s+(?!\s))*?(?=\s*\{)/,
+		inside: {
+			'punctuation': /[:()]/
+		}
+	},
+	// selectors and mixins are considered the same
+	'selector': {
+		pattern: /(?:@\{[\w-]+\}|[^{};\s@])(?:@\{[\w-]+\}|\((?:[^(){}]|\([^(){}]*\))*\)|[^(){};@\s]|\s+(?!\s))*?(?=\s*\{)/,
+		inside: {
+			// mixin parameters
+			'variable': /@+[\w-]+/
+		}
+	},
+
+	'property': /(?:@\{[\w-]+\}|[\w-])+(?:\+_?)?(?=\s*:)/,
+	'operator': /[+\-*\/]/
+});
+
+Prism.languages.insertBefore('less', 'property', {
+	'variable': [
+		// Variable declaration (the colon must be consumed!)
+		{
+			pattern: /@[\w-]+\s*:/,
+			inside: {
+				'punctuation': /:/
+			}
+		},
+
+		// Variable usage
+		/@@?[\w-]+/
+	],
+	'mixin-usage': {
+		pattern: /([{;]\s*)[.#](?!\d)[\w-].*?(?=[(;])/,
+		lookbehind: true,
+		alias: 'function'
+	}
+});