add health check

lib/chessh/web/web.ex

@@ -392,6 +392,12 @@ defmodule Chessh.Web.Endpoint do
     )
   end
 
+  get "/health" do
+    conn
+    |> put_resp_content_type("text/plain")
+    |> send_resp(200, "healthy")
+  end
+
   match _ do
     send_resp(conn, 404, "Route undefined")
   end

test/ssh/ssh_auth_test.exs

@@ -5,7 +5,7 @@ defmodule Chessh.SSH.AuthTest do
   @localhost '127.0.0.1'
   @localhost_inet {{127, 0, 0, 1}, 1}
   @key_name "The Gamer Machine"
-  @valid_user %{username: "lizzy#0003", password: "password", discord_id: "3"}
+  @valid_user %{username: "lizzy", password: "password", discord_id: "3"}
   @client_test_keys_dir Path.join(Application.compile_env!(:chessh, :key_dir), "client_keys")
   @client_pub_key 'id_ed25519.pub'