feat(ntfy): dispatch api_key_revoked from ApiKey#revoke!

test/models/api_key_test.rb

@@ -0,0 +1,31 @@
+require "test_helper"
+
+class ApiKeyTest < ActiveSupport::TestCase
+  include ActiveJob::TestHelper
+
+  setup do
+    ActiveJob::Base.queue_adapter = :test
+    @admin = AdminUser.create!(
+      name: "Key Admin", email: "key@example.com",
+      password: "password123",
+      ntfy_topic: "key-topic", ntfy_token: "tk_key",
+      ntfy_enabled: true, ntfy_server_url: "https://ntfy.example.com"
+    )
+    stub_request(:post, "https://ntfy.example.com/key-topic").to_return(status: 200)
+  end
+
+  test "revoke! dispatches api_key_revoked notification" do
+    api_key = ApiKey.create!(
+      name: "Test Key",
+      key_digest: "e" * 64,
+      key_prefix: "api_live_ab",
+      permissions: {}, active: true
+    )
+
+    assert_enqueued_jobs 1 do
+      api_key.revoke!
+    end
+
+    assert_not api_key.reload.active
+  end
+end