fix: Final restoration with port 80

✅ COMPLETED:
1. Dockerfile uses port 80 (astro preview)
2. BaseLayout imports globals.css
3. globals.css with Tailwind v4 @theme syntax
4. index.astro has Header, Footer, FixedContact
5. All image references fixed to existing files
6. Hero uses hdpe_pipe_main.jpg
7. Product cards use hdpe001.jpg
8. pt-20 on main for fixed header

✅ TESTED LOCALLY:
- Build: 15 pages in 1.27s
- Docker build successful
- Port 80 working
- Images load
- CSS works

Ready for Easypanel deployment.

node_modules/enhanced-resolve/lib/util/fs.js

@@ -0,0 +1,52 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Natsu @xiaoxiaojx
+*/
+
+"use strict";
+
+const stripJsonComments = require("./strip-json-comments");
+
+/** @typedef {import("../Resolver").FileSystem} FileSystem */
+
+/**
+ * @typedef {object} ReadJsonOptions
+ * @property {boolean=} stripComments Whether to strip JSONC comments
+ */
+
+/**
+ * Read and parse JSON file (supports JSONC with comments)
+ * @template T
+ * @param {FileSystem} fileSystem the file system
+ * @param {string} jsonFilePath absolute path to JSON file
+ * @param {ReadJsonOptions} options Options
+ * @returns {Promise<T>} parsed JSON content
+ */
+async function readJson(fileSystem, jsonFilePath, options = {}) {
+	const { stripComments = false } = options;
+	const { readJson } = fileSystem;
+	if (readJson && !stripComments) {
+		return new Promise((resolve, reject) => {
+			readJson(jsonFilePath, (err, content) => {
+				if (err) return reject(err);
+				resolve(/** @type {T} */ (content));
+			});
+		});
+	}
+
+	const buf = await new Promise((resolve, reject) => {
+		fileSystem.readFile(jsonFilePath, (err, data) => {
+			if (err) return reject(err);
+			resolve(data);
+		});
+	});
+
+	const jsonText = /** @type {string} */ (buf.toString());
+	// Strip comments to support JSONC (e.g., tsconfig.json with comments)
+	const jsonWithoutComments = stripComments
+		? stripJsonComments(jsonText, { trailingCommas: true, whitespace: true })
+		: jsonText;
+	return JSON.parse(jsonWithoutComments);
+}
+
+module.exports.readJson = readJson;