Convert project from framework to Maven library with separate demo app

[devondragon]

Overview

Convert this project from a SpringBoot framework that users fork/clone into a proper Java library published to Maven Central. This architectural change will make the project easier to integrate, update, and maintain.

Key Changes

• Extract core functionality into a standalone library
• Configure Maven Central publishing
• Create separate demo application repository
• Update documentation for library usage
• Provide migration guide for existing users

Technical Tasks

1. [ ] Refactor core code into library structure
2. [ ] Set up Maven/Gradle publishing configuration
3. [ ] Configure Sonatype deployment
4. [ ] Create new repository for demo application
5. [ ] Migrate example code and tests to demo app
6. [ ] Update README and documentation
7. [ ] Create migration guide
8. [x] Tag final framework version
9. [ ] Update version numbering for library release

Benefits

• Users can add library via Maven/Gradle dependencies
• Easier updates for bug fixes and new features
• Clearer separation between library and implementation
• Better alignment with Java ecosystem practices

Timeline

This represents a major architectural change and will be released as version 3.0.0

[create-issue-branch[bot]]

Branch issue-123-Convert-project-from-framework-to-Maven-library-with-separate-demo-app created!

[devondragon]

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