feat: add haskell-language-server 2.14.0.0

[0chroma]

Summary

Add the Haskell Language Server (HLS) v2.14.0.0 to the package registry, enabling Haskell LSP support for editors like Neovim, VS Code, and Emacs.

Context

HLS is the official Language Server Protocol implementation for Haskell, providing features like go-to-definition, type hover, code actions, and refactoring. It was missing from the registry, blocking Haskell development workflows.

Changes

• Added packages/haskell-language-server/build.ncl — Build spec sourcing from GitHub tag 2.14.0.0 with automatic extraction
• Added packages/haskell-language-server/build.sh — Build script using GHC + Cabal with dynamic linking

Key Implementation Details

• Builds from source using cabal build exe:haskell-language-server (not prebuilt binaries per guidelines)
• Uses ldd to discover and copy all required shared Haskell libraries at runtime, avoiding static linking issues (Haskell libs aren't PIC-compatible)
• Network access enabled via needs = { dns = {}, internet = {} } for Cabal dependency index updates
• All 14 min check checks pass, including standalone version test

Use Cases

• Haskell development with LSP-enabled editors
• Type checking and refactoring for Haskell projects
• Integration with cabal and Stack projects

Testing

# Validate the package spec
min check --packages haskell-language-server

# Build the package
min patched-build haskell-language-server

# Verify the binary works
min add haskell-language-server
haskell-language-server --version

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✨ Finishing Touches

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• Create PR with unit tests
• Commit unit tests in branch add/haskell-language-server

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