Allow configuration of logged_out page content

[duanemay]

This allows configuration of the logged_out page content, e.g.

logged_out:
  message: You have successfully logged out.
  link_text: Back to Sign In
  link_url: http://localhost:8080/uaa/login

[Copilot]

Pull request overview

Adds support for operator-configurable content on the /logged_out page so deployments can customize the message and “back to sign in” link without modifying templates.

Changes:

• Introduces logged_out.message, logged_out.link_text, and logged_out.link_url properties (with defaults) and wires them into the logged-out controller/model.
• Updates the logged_out.html Thymeleaf template to render the configured values.
• Documents the new configuration options and adds an example snippet to the default uaa.yml.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
uaa/src/main/resources/uaa.yml	Adds commented example configuration for logged_out.*.
server/src/main/resources/templates/web/logged_out.html	Renders logout page message/link from model attributes.
server/src/main/java/org/cloudfoundry/identity/uaa/logout/LoggedOutEndpoint.java	Injects configurable properties and populates the model for the template.
docs/UAA-Configuration-Reference.md	Documents the new logged_out.* properties and links them in the reference.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.