Add meta tag and robots.txt instructions not to index

Gemfile.lock

@@ -182,6 +182,7 @@ GEM
     faraday_middleware (1.2.1)
       faraday (~> 1.0)
     ffi (1.17.0-arm64-darwin)
+    ffi (1.17.0-x86_64-darwin)
     ffi (1.17.0-x86_64-linux-gnu)
     foreman (0.88.1)
     globalid (1.2.1)
@@ -285,6 +286,8 @@ GEM
     nio4r (2.7.4)
     nokogiri (1.16.8-arm64-darwin)
       racc (~> 1.4)
+    nokogiri (1.16.8-x86_64-darwin)
+      racc (~> 1.4)
     nokogiri (1.16.8-x86_64-linux)
       racc (~> 1.4)
     notifications-ruby-client (6.2.0)
@@ -520,6 +523,7 @@ GEM
 
 PLATFORMS
   arm64-darwin-23
+  x86_64-darwin-24
   x86_64-linux
 
 DEPENDENCIES

app/views/layouts/application.html.haml

@@ -13,6 +13,7 @@
     %meta{ content: "width=device-width, initial-scale=1, viewport-fit=cover", name: "viewport" }/
     %meta{ content: "blue", name: "theme-color" }/
     %meta{ content: "IE=edge", "http-equiv" => "X-UA-Compatible" }/
+    %meta{ content: "noindex", name: "robots" }/
     %link{ href: asset_path("favicon.ico"), rel: "shortcut icon", sizes: "16x16 32x32 48x48", type: "image/x-icon" }/
     %link{ color: "blue", href: "govuk-mask-icon.svg", rel: "mask-icon" }/
     %link{ href: asset_path("govuk-apple-touch-icon-180x180.png"), rel: "apple-touch-icon", sizes: "180x180" }/

public/robots.txt

@@ -1 +1,2 @@
-# See https://www.robotstxt.org/robotstxt.html for documentation on how to use the robots.txt file
+User-agent: *
+Disallow: /