feat: GeoExport mirror with VPS install/uninstall

Add static site copy, Node server, and one-line deploy scripts
for nginx + systemd on Ubuntu VPS.

Co-authored-by: Cursor <cursoragent@cursor.com>

site/package.json

@@ -0,0 +1,13 @@
+{
+  "name": "geoexport-clone",
+  "private": true,
+  "version": "1.0.0",
+  "description": "Local mirror of https://geoexport.org/",
+  "scripts": {
+    "start": "node server.mjs",
+    "dev": "node server.mjs"
+  },
+  "engines": {
+    "node": ">=18"
+  }
+}