[WIP] Fix XML/JSON tools to validate generated types

[Copilot]

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Original prompt

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This section details on the original issue you should resolve

<issue_title>The import XML/JSON tools do not validate the generated types against existing ones</issue_title>
<issue_description>### Description

As a result, the output of the source code is erroneous due to duplicate types.

Screen.Recording.2025-07-25.at.2.25.49.PM.mov

Steps to Reproduce

Import the following json and xml files as done in the above vid.

<library>
  <book>
    <title>Clean Code</title>
    <author>Robert C. Martin</author>
    <year>2008</year>
    <isbn>9780132350884</isbn>
  </book>
  <book>
    <title>The Pragmatic Programmer</title>
    <author>Andrew Hunt</author>
    <year>1999</year>
    <isbn>9780201616224</isbn>
  </book>
</library>

{
    "library": {
        "volume": [
            {
                "title": "Clean Code",
                "details": "Robert C. Martin (2008)",
                "available": true
            },
            {
                "title": "The Pragmatic Programmer",
                "details": "Andrew Hunt (1999)",
                "available": true
            }
        ]
    }
}

Version

1.1.1</issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #870

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[dulajdilshan]

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