Production readiness, SEO enhancements, and Engine V2 upgrades

public/manifest.json

@@ -0,0 +1,16 @@
+{
+  "name": "Hydro Builder",
+  "short_name": "HydroBuilder",
+  "description": "3D Hydroponics System Designer & Fluid Simulator",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#18181b",
+  "theme_color": "#18181b",
+  "icons": [
+    {
+      "src": "data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>🌿</text></svg>",
+      "sizes": "192x192",
+      "type": "image/svg+xml"
+    }
+  ]
+}

public/robots.txt

@@ -0,0 +1,4 @@
+User-agent: *
+Allow: /
+
+Sitemap: https://hydro.thetempleofdoom.com/sitemap.xml

public/sitemap.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+   <url>
+      <loc>https://hydro.thetempleofdoom.com/</loc>
+      <changefreq>weekly</changefreq>
+      <priority>1.0</priority>
+   </url>
+</urlset>