Neovim

Shared Neovim 0.12.x configuration for Fedora Linux and macOS.

This first migration deliberately keeps the existing editor recognizable rather than replacing it with a framework or a large rewrite.

Migration changes

• nvim is an explicit Stow package.
• vim-tmux-navigator is enabled on the Neovim side; the old direct Ctrl-h/j/k/l split mappings are removed.
• Tinymist uses the Neovim 0.12 vim.lsp.config() API correctly and is enabled.
• The local ~/workspace/zettel.nvim plugin is enabled only when that checkout exists, so a fresh Mac does not fail because the personal plugin is absent.
• Mason Tool Installer no longer installs tools automatically on every editor startup. Tools remain explicitly installable while tool ownership is cleaned up in a later step.
• External formatters are checked before execution.

Cleanup candidates

After this version is proven on Fedora and macOS, review these separately:

• Mason vs workstation-bootstrap ownership of developer tools.
• Hard-coded personal paths.
• Formatter ownership and format-on-save policy.
• Plugin-file splitting only where it improves navigation.