feat: add reverse engg with example project

[paul58914080]

Checklist:

• My code follows the contribution guidelines of this project
• I have performed a self-review of my own code
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• My commits follow conventional commit message guidelines

[Copilot]

Pull Request Overview

This PR introduces reverse engineering functionality by adding an example project alongside comprehensive template generation capabilities. It creates a structured approach for transforming concrete example code into reusable cookiecutter templates.

• Adds a complete example Java/Spring Boot project with hexagonal architecture
• Implements automated reverse engineering script to convert example to template
• Introduces code formatting, mutation testing, and GitHub Actions CI/CD workflows

Reviewed Changes

Copilot reviewed 64 out of 65 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
{{cookiecutter.app_name}}/rest-adapter/src/test/java/{{cookiecutter.package_name}}/rest/{{cookiecutter.domain_capitalized}}RestAdapterApplication.java	Removes MockBean annotation and replaces with proper test configuration
{{cookiecutter.app_name}}/rest-adapter/src/test/java/{{cookiecutter.package_name}}/rest/{{cookiecutter.domain_capitalized}}ResourceTest.java	Updates test to use Spring Boot 3.x MockitoBean annotation
{{cookiecutter.app_name}}/rest-adapter/pom.xml	Updates OpenAPI generator version to 7.14.0
{{cookiecutter.app_name}}/pom.xml	Adds code formatting, git hooks, and mutation testing plugins
{{cookiecutter.app_name}}/domain-api/src/main/java/{{cookiecutter.package_name}}/domain/port/Request{{cookiecutter.domain_capitalized}}.java	Renames method from get{{cookiecutter.domain_capitalized}}s to get{{cookiecutter.domain_plural_capitalized}}
example/	Complete example project demonstrating the template structure
generate-cookiecutter-template-from-example-project.sh	Script to convert example project to cookiecutter template
.github/workflows/	CI/CD workflows for template generation and validation

Comments suppressed due to low confidence (1)

{{cookiecutter.app_name}}/rest-adapter/src/test/java/{{cookiecutter.package_name}}/rest/{{cookiecutter.domain_capitalized}}ResourceTest.java:22

• The import org.springframework.test.context.bean.override.mockito.MockitoBean may not exist in Spring Boot versions earlier than 3.4.0. This annotation was introduced as part of the bean override testing support. Consider verifying the Spring Boot version compatibility or using the traditional @MockBean approach for broader compatibility.

import org.springframework.test.context.bean.override.mockito.MockitoBean;