feat(server): argon2_elixir dep + dashboard_password_hash config

server/config/runtime.exs

@@ -1,5 +1,17 @@
 import Config
 
+if config_env() in [:prod, :dev] do
+  hash =
+    System.get_env("DASHBOARD_PASSWORD_HASH") ||
+      raise """
+      DASHBOARD_PASSWORD_HASH not set.
+      Generate one with:
+        mix run -e 'IO.puts(Argon2.hash_pwd_salt("your-password"))'
+      """
+
+  config :server, :dashboard_password_hash, hash
+end
+
 # config/runtime.exs is executed for all environments, including
 # during releases. It is executed after compilation and before the
 # system starts, so it is typically used to load production configuration

server/config/test.exs

@@ -28,3 +28,5 @@ config :phoenix_live_view,
   enable_expensive_runtime_checks: true
 
 config :bcrypt_elixir, :log_rounds, 4
+
+config :argon2_elixir, t_cost: 1, m_cost: 8