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/which-pm-runs/package.json

@@ -0,0 +1,42 @@
+{
+  "name": "which-pm-runs",
+  "version": "1.1.0",
+  "description": "Detects what package manager executes the process",
+  "main": "index.js",
+  "files": [
+    "index.js"
+  ],
+  "engines": {
+    "node": ">=4"
+  },
+  "repository": "https://github.com/zkochan/packages/tree/main/which-pm-runs",
+  "bugs": {
+    "url": "https://github.com/zkochan/packages/labels/package%3A%20which-pm-runs"
+  },
+  "keywords": [
+    "npm",
+    "pnpm",
+    "yarn",
+    "cnpm"
+  ],
+  "author": "Zoltan Kochan",
+  "license": "MIT",
+  "homepage": "https://github.com/zkochan/packages/tree/main/which-pm-runs#readme",
+  "dependenciesMeta": {
+    "which-pm-runs": {
+      "injected": true
+    }
+  },
+  "devDependencies": {
+    "cnpm": "^7.1.1",
+    "execa": "^5.1.1",
+    "npm": "^8.2.0",
+    "pnpm": "^6.23.6",
+    "tape": "^5.3.2",
+    "which-pm-runs": "file:",
+    "yarn": "^1.22.17"
+  },
+  "scripts": {
+    "test": "tape test"
+  }
+}