Draft: project configuration enhancements (pending implementation)

[Copilot]

• Update classpath handling (recursive JAR search, Maven coordinates) and add exclude/source root support
• Add VSCode configuration updates for classpath and exclude settings
• Add focused tests for source root detection and recursive classpath behavior
• Run targeted tests and document results

Original prompt

implement `### 14. Project Configuration

• Recursive classpath search (Allow for recursively searching groovy.classpath directory entries. GroovyLanguageServer/groovy-language-server#100, has PR Optionally recursively search additional classpath directories GroovyLanguageServer/groovy-language-server#99)

• Better classpath management

  • GUI for adding JARs
  • Maven repository support

• Source roots detection

  • src/main/groovy
  • src/test/groovy

• Exclude patterns (Add Ignore targetDirectory and add a ignore variable. GroovyLanguageServer/groovy-language-server#79)

  • Ignore build/, target/, etc.
  • Custom exclude patterns`

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[billy-briggs-dev]

@copilot proceed with the implementation