feat: Implement Lua Support

[KyleKing]

I think this is ready for at least a first-pass review!

It seems to be working and I'll keep testing it while I finish a package for nvim: https://github.com/KyleKing/codanna.nvim

[bartolli]

Thank you @KyleKing for the contribution, appreciate it! Please rebase on latest main (v0.9.12)

I've just merged a release with significant API changes that will likely affect your branch.

Key changes to be aware of:

• JSON output now uses a unified Envelope format - breaking change for --json consumers
• Removed dead code including the Tantivy resolution methods (resolve_import, build_resolution_context, resolve_import_path, etc.)
• file_extensions() removed from LanguageBehavior trait - use LanguageDefinition::extensions() instead
• New required trait method: format_path_as_module for language-specific path formatting
• Added shared path utilities in src/parsing/paths.rs

When you have a moment, please rebase your branch on main. Let me know if you run into any conflicts or have questions.

[KyleKing]

Thanks, I think I've made the appropriate updates, but let me know if this looks okay

[KyleKing]

I realized there were a few more places where lua needed to be added, but I think it now might be ready for review?

[bartolli]

I realized there were a few more places where lua needed to be added, but I think it now might be ready for review?

Thank you! I'll review it tomorrow. If there's anything to fix, I'll take care of it.

[KyleKing]

There are a lot of changes and i realized I have copilot access for some reason, so I had it run a review and it had some valid findings. I'm doing some additional testing against larger lua code bases and will have a review-ready update by tomorrow!

[KyleKing]

Seems to be working! I was missing the functionality to track relationships, but that now works and returned reasonable results on nvim's repo

[bartolli]

I’ve been under the weather this past week and haven’t been able to review the PR yet. I’ll need a few more days to get back to you.. Thanks for the time and effort you’ve put into this.

[KyleKing]

No worries and no rush, I hope you feel better!