feat: add Lateralus language server configuration

[bad-antics]

Add Lateralus Language Server

This PR adds configuration for the Lateralus Language Server, the official LSP implementation for the Lateralus programming language.

Language Server Info

• Name: lateralus-lsp
• Repository: https://github.com/bad-antics/lateralus-lang
• Protocol: LSP 3.17
• Registered on langserver.org: Yes

Installation

curl -fsSL https://lateralus.dev/install.sh | sh
# or
cargo install lateralus-lsp

Supported Features

• ✅ Semantic syntax highlighting
• ✅ Code completion with auto-import
• ✅ Go to definition/references
• ✅ Hover documentation
• ✅ Rename refactoring
• ✅ Inlay hints (type hints, parameter hints)
• ✅ Code actions and quick fixes
• ✅ Workspace symbol search
• ✅ Formatting

Configuration

vim.lsp.config('lateralus_ls', {
  settings = {
    lateralus = {
      inlayHints = { enable = true },
      diagnostics = { enable = true },
      completion = { autoImport = true }
    }
  }
})

Files

Filetype	Extensions
lateralus	.ltl

Root Markers

• lateralus.toml (project manifest)
• .git

[justinmk]

To avoid vanity projects, or spam, we have criteria: https://github.com/neovim/nvim-lspconfig/blob/master/CONTRIBUTING.md#criteria