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/astro/dist/cli/check/index.js

@@ -0,0 +1,37 @@
+import path from "node:path";
+import { ensureProcessNodeEnv } from "../../core/util.js";
+import { createLoggerFromFlags, flagsToAstroInlineConfig } from "../flags.js";
+import { getPackage } from "../install-package.js";
+async function check(flags) {
+  ensureProcessNodeEnv("production");
+  const logger = createLoggerFromFlags(flags);
+  const getPackageOpts = {
+    skipAsk: !!flags.yes || !!flags.y,
+    cwd: flags.root
+  };
+  const checkPackage = await getPackage(
+    "@astrojs/check",
+    logger,
+    getPackageOpts,
+    ["typescript"]
+  );
+  const typescript = await getPackage("typescript", logger, getPackageOpts);
+  if (!checkPackage || !typescript) {
+    logger.error(
+      "check",
+      "The `@astrojs/check` and `typescript` packages are required for this command to work. Please manually install them into your project and try again."
+    );
+    return;
+  }
+  if (!flags.noSync && !flags.help) {
+    const { default: sync } = await import("../../core/sync/index.js");
+    await sync(flagsToAstroInlineConfig(flags));
+  }
+  const { check: checker, parseArgsAsCheckConfig } = checkPackage;
+  const config = parseArgsAsCheckConfig(process.argv);
+  logger.info("check", `Getting diagnostics for Astro files in ${path.resolve(config.root)}...`);
+  return await checker(config);
+}
+export {
+  check
+};