Summary:

The code changes in this pull request focus on improving the documentation, deployment, and localization/internationalization features of the Agama framework, which is used in the Jans Auth Server application. The changes cover a range of topics, including project structure, flow design, error handling, and variable naming conventions, all of which have implications for the overall security of the application.

From an application security perspective, the key points to highlight are:

1. Sensitive Configuration Data: The documentation emphasizes the importance of not storing real configuration properties in the project.json file, which is a good security practice to avoid exposing sensitive information.
2. Flow Execution Control: The use of the noDirectLaunch field in the project.json file to restrict direct access to certain flows is a security measure that helps to protect the application.
3. Consistent Directory Structure: The documentation's emphasis on maintaining a consistent directory structure for web assets helps to reduce the risk of potential security issues related to file inclusion or path traversal vulnerabilities.
4. Input Validation and Sanitization: The code changes highlight the importance of properly validating and sanitizing user-provided input, especially when rendering templates and handling user data, to prevent vulnerabilities like cross-site scripting (XSS) and SQL injection.
5. Caching and Error Handling: The changes to the MessagesService and LabelsService classes demonstrate the need to carefully design caching mechanisms and error handling to prevent potential security issues, such as cache poisoning attacks and information disclosure.

Overall, the code changes appear to be focused on improving the security and maintainability of the Agama framework, but it is important to continue reviewing the actual implementation and ensuring that appropriate security measures are in place to protect the Jans Auth Server application and its users.

Files Changed:

1. docs/agama/gama-format.md: This file has been updated to document the Agama project format, with a focus on managing web assets, sensitive configuration data, and flow execution control.
2. docs/janssen-server/developer/agama/flows-navigation-ui.md: This file provides documentation on the Agama framework's functionality, including template rendering, data model, asset handling, and user data retrieval.
3. docs/janssen-server/developer/agama/agama-best-practices.md: This file outlines recommended practices and guidelines for developing Agama applications, with a focus on project reuse, flow design, error handling, and variable naming conventions.
4. docs/janssen-server/developer/agama/advanced-usages.md: This file provides an in-depth overview of the localization and internationalization features of the Agama engine, including the use of the labels.txt file and access to the Jans Auth Server's resource bundles.
5. jans-auth-server/agama/engine/src/main/java/io/jans/agama/engine/page/Page.java: The changes in this file focus on improving the organization and maintainability of the Page class, including the use of dependency injection and the handling of the dataModel.
6. jans-auth-server/agama/engine/src/main/java/io/jans/ads/Deployer.java: This file contains changes related to the deployment and management of Agama projects, including the handling of the deployment lifecycle, flow management, and asset management.
7. jans-auth-server/agama/engine/src/main/java/io/jans/agama/engine/service/MessagesService.java: The changes in this file focus on improving the performance and reliability of the MessagesService class, including the use of ApplicationScoped and the handling of exceptions.
8. jans-auth-server/agama/engine/src/main/java/io/jans/agama/engine/service/LabelsService.java: The changes in this file are related to the LabelsService class, which is responsible for managing and retrieving localized labels for the application. The changes highlight the importance of input validation and error handling when dealing with localization and internationalization features.