fix: fly build + adapter-node peer dependency

apps/backend/fly.toml

@@ -6,6 +6,9 @@
 app = "classroomio-server"
 primary_region = "lhr"
 
+[build]
+  dockerfile = "Dockerfile.prod"
+
 [http_service]
   internal_port = 3002
   force_https = true

apps/dashboard/package.json

@@ -27,7 +27,7 @@
     "@sentry/vite-plugin": "^2.6.2",
     "@supabase/supabase-js": "^2.31.0",
     "@sveltejs/adapter-auto": "^2.1.0",
-    "@sveltejs/adapter-node": "^5.2.4",
+    "@sveltejs/adapter-node": "^1.3.1",
     "@sveltejs/adapter-vercel": "^3.0.3",
     "@tailwindcss/forms": "^0.5.4",
     "@types/pluralize": "0.0.30",