feat(languages): add Lateralus language support

[bad-antics]

Add Lateralus Language Support

This PR adds full language support for Lateralus, a modern expressive programming language.

Configuration Added

[[language]]
name = "lateralus"
scope = "source.lateralus"
file-types = ["ltl"]
roots = ["lateralus.toml"]
language-servers = ["lateralus-ls"]
auto-format = true

Language Server

• Name: lateralus-lsp
• Installation: curl -fsSL https://lateralus.dev/install.sh | sh or cargo install lateralus-lsp
• Protocol: LSP 3.17
• Features: Completion, hover, go-to-definition, references, rename, formatting, inlay hints

Tree-sitter Grammar

• Repository: https://github.com/bad-antics/tree-sitter-lateralus
• Highlights: Full syntax highlighting with semantic tokens
• Queries: highlights.scm, locals.scm, indents.scm, textobjects.scm

About Lateralus

Lateralus is a compiled language featuring:

• Type inference with optional explicit types
• Pipeline operators (|>) for functional composition
• Pattern matching with exhaustiveness checking
• First-class concurrency (async/await, channels)
• LLVM-based native compilation

Links

• 📦 Repository
• 📚 Documentation
• 🔧 VS Code Extension