Remove NoActor module, improve Member validation, update docs

test/mv/authorization/checks/no_actor_test.exs

@@ -1,52 +0,0 @@
-defmodule Mv.Authorization.Checks.NoActorTest do
-  @moduledoc """
-  Tests for the NoActor Ash Policy Check.
-
-  This check allows actions without an actor ONLY in test environment.
-  In production/dev, all operations without an actor are denied.
-  """
-  use ExUnit.Case, async: true
-
-  alias Mv.Authorization.Checks.NoActor
-
-  describe "match?/3" do
-    test "returns true when actor is nil in test environment" do
-      # In test environment (config :allow_no_actor_bypass = true), NoActor allows operations
-      result = NoActor.match?(nil, %{}, [])
-      assert result == true
-    end
-
-    test "returns false when actor is present" do
-      actor = %{id: "user-123"}
-      result = NoActor.match?(actor, %{}, [])
-      assert result == false
-    end
-
-    test "uses compile-time config (not runtime Mix.env)" do
-      # The @allow_no_actor_bypass is set via Application.compile_env at compile time
-      # In test.exs: config :mv, :allow_no_actor_bypass, true
-      # In prod/dev: not set (defaults to false)
-      # This ensures the check is release-safe (no runtime Mix.env dependency)
-      result = NoActor.match?(nil, %{}, [])
-
-      # In test environment (as compiled), should allow
-      assert result == true
-
-      # Note: We cannot test "production mode" here because the flag is compile-time.
-      # Production safety is guaranteed by:
-      # 1. Config only set in test.exs
-      # 2. Default is false (fail-closed)
-      # 3. No runtime environment checks
-    end
-  end
-
-  describe "describe/1" do
-    test "returns description based on compile-time config" do
-      description = NoActor.describe([])
-      assert is_binary(description)
-
-      # In test environment (compiled with :allow_no_actor_bypass = true)
-      assert description =~ "test environment"
-    end
-  end
-end