Kept the prototype out of search engines in the Website service.

Services/Website/.env.local

@@ -51,6 +51,9 @@ ANALYTICS_DOMAINS=
 # Whether the pages also embed the session recorder script: true | false
 ANALYTICS_RECORDER=false
 
+# Whether search engines may index the site. Off by default: every response is marked `X-Robots-Tag: noindex, nofollow`.
+# SITE_INDEXABLE=false
+
 # --- Passkeys ----------------------------------------------------------------
 
 # Origin the sign-in screen is served at; browsers bind passkeys to it.