Feat: use custom pre commit config in refactor

[JordoHeffernan]

secureli-XXX

including recent feature from main branch to maintain settings if repo has existing pre-commit-config.yaml on secureli init.

Changes

*Updates to pre-commit, action, scan, and language support to check for existing congif yaml, and copy relevant contents into newly generated .secureli/pre-commit-config.yaml as well as lots of new tests.

Testing

Clean Code Checklist

• Meets acceptance criteria for issue
• New logic is covered with automated tests
• Appropriate exception handling added
• Thoughtful logging included
• Documentation is updated
• Follow-up work is documented in TODOs
• TODOs have a ticket associated with them
• No commented-out code included