feat(site): port stitch design system + seed-ready content (#5)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

package.json

@@ -14,9 +14,11 @@
     "payload": "payload",
     "generate:types": "payload generate:types",
     "generate:importmap": "payload generate:importmap",
-    "test": "echo \"no tests yet\" && exit 0"
+    "test": "echo \"no tests yet\" && exit 0",
+    "seed": "tsx scripts/seed.ts"
   },
   "dependencies": {
+    "@marsidev/react-turnstile": "^1.5.0",
     "@payloadcms/db-postgres": "^3.50.0",
     "@payloadcms/next": "^3.50.0",
     "@payloadcms/richtext-lexical": "^3.50.0",
@@ -41,6 +43,7 @@
     "eslint-config-next": "16.1.6",
     "postcss": "^8.5.0",
     "tailwindcss": "^3.4.17",
+    "tsx": "^4.19.4",
     "typescript": "^5.7.3"
   },
   "engines": {