Simplify code snippets executor

[Goooler]

Refs #1306.

[gemini-code-assist]

Code Review

The pull request simplifies the code snippet executor by introducing a DslLang enum and refactoring the CodeSnippetExtractor to use this enum. This change aims to improve the maintainability and readability of the code. The removal of several classes and interfaces also contributes to the simplification. Overall, the changes seem beneficial, but some points need attention.

Summary of Findings

• Missing Kotlin DSL support: The Kotlin DSL support is currently commented out. It's important to either fully implement it or remove the commented-out code to avoid confusion.
• Hardcoded 'api' and 'main' subprojects: The subproject names 'api' and 'main' are hardcoded in SnippetExecutable.kt. Consider making these configurable or using constants to improve flexibility and maintainability.
• Removal of executors and fixtures: The pull request removes the SnippetExecutor interface and related implementations like GroovyBuildExecutor and NoopExecutor. Ensure that the new implementation covers all the necessary functionalities provided by the removed components.

Merge Readiness

The pull request introduces significant changes to the code snippet execution logic. While the simplification is a positive step, the missing Kotlin DSL support and hardcoded subproject names need to be addressed. I recommend addressing these issues before merging. I am unable to approve the pull request, and other reviewers should review and approve this code before merging.

[Copilot]

Copilot reviewed 12 out of 12 changed files in this pull request and generated no comments.

[Goooler]

CI failures will be fixed by #1306.