Add standalone README for example 01-hosting-use-case

[Copilot]

The hosting use case example lacked local documentation. Users had to navigate to the main docs site to understand the example structure and workflow.

Changes

• Created /example/01-hosting-use-case/README.md with comprehensive documentation:

  • OOP relations and hierarchical service design patterns
  • Service call metadata workflow explanation
  • Database schema overview with table relationships
  • Backend configuration mapping (properties, class references, class mapping)
  • Python implementation structure
  • Prerequisites and setup steps for running the example

• Fixed documentation accuracy: Corrected A record value from mx01.mailserver.com to 5.44.111.165 (original RST docs had incorrect value; actual metadata was correct)

The README mirrors the content from /doc/source/examples.rst section 1, converted to Markdown with local file references for quick navigation within the example directory.

Original prompt

Write a /example/01-hosting-use-case/README.md document describing the example in detail. The example is already documented in /doc/source/examples.rst.

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[Copilot]

Pull request overview

This PR adds a comprehensive standalone README.md file to the hosting use case example directory, making it easier for users to understand and run the example without navigating to the main documentation site. The content is adapted from the existing RST documentation with local file references.

• Created detailed README.md with complete documentation of the hosting use case example
• Fixed documentation accuracy by correcting the A record value from mx01.mailserver.com to 5.44.111.165

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[Copilot]

The addition of "Service Authentication" is not present in the original documentation (examples.rst line 25), which only mentions "Service Scaling and Load Balancing" for example number 4. This appears to be an unintentional deviation from the source documentation. Consider aligning this with the original text to avoid misleading users about what example 4 covers.

Suggested change

	> **Note:** In example number 4, we will explore these aspects further, including *Service Scaling*, *Load Balancing* and *Service Authentication*.
	> **Note:** In example number 4, we will explore these aspects further, including *Service Scaling* and *Load Balancing*.