add postgres integration to save progress across devices

package.json

@@ -6,6 +6,7 @@
     "dev": "vite dev",
     "build": "vite build",
     "preview": "vite preview",
+    "start": "node build",
     "check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
     "check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
     "lint": "prettier --plugin-search-dir . --check . && eslint .",
@@ -37,6 +38,7 @@
   },
   "type": "module",
   "dependencies": {
+    "@sveltejs/adapter-node": "^1.3.1",
     "@types/gapi": "^0.0.47",
     "@types/google.accounts": "^0.0.14",
     "@types/google.picker": "^0.0.42",
@@ -44,6 +46,7 @@
     "@zip.js/zip.js": "^2.7.20",
     "dexie": "^4.0.1-alpha.25",
     "panzoom": "^9.4.3",
+    "pg": "^8.16.3",
     "svelte-easy-crop": "^2.0.1"
   }
 }