Add standalone Neovim Lua config

Replace the neovim stow package's symlink into vim/.vim with a real,
independent Lua config: init.lua + lua/config/* (options, keymaps,
autocmds, lazy.nvim bootstrap) + lua/plugins/*.lua (one file per plugin
group).

- Plugin manager: lazy.nvim (self-bootstrapping, no submodule needed).
- Carries over every plugin from the vimrc as-is: vim-airline (+ themes,
  tmuxline), vim-janah colorscheme, nerdtree, vim-signify, nerdcommenter,
  ale, vim-fugitive, quick-scope, ctrlp.vim, claude-code.nvim, plus
  vim-ansible-yaml/vim-terraform gated the same way the vimrc gated them
  (executable() checks, now as lazy.nvim `cond` functions).
- Replaces YouCompleteMe + jedi-vim entirely with nvim-lspconfig +
  mason.nvim + mason-lspconfig.nvim (ensure_installed: pyright, lua_ls,
  bashls, terraformls, yamlls, ts_ls, cssls, html; clangd enabled
  directly since it's already on PATH via Xcode CLT) and blink.cmp for
  completion (+ friendly-snippets), with blink's LSP capabilities merged
  into every server's default config.
- ALE stays as a pure linter/fixer (g:ale_disable_lsp = 1) so it doesn't
  duplicate nvim-lspconfig's diagnostics/hover/go-to-definition.
- Ports the vimrc's general settings/functions (options, window-nav
  keymaps, arrow-key disabling, StripTrailingWhitespace, AppendModeline,
  the git->Git abbreviation) to Lua; drops the w!! sudo-save abbreviation
  (vimrc's own comment notes it doesn't work under Neovim) and the
  reload-vimrc-on-save autocmd (no clean Lua equivalent).

Vim's own vimrc, ftplugin/python.vim, and plugin installs are completely
untouched and unaffected by this change.

1 files changed, 23 insertions, 0 deletions

diff --git a/neovim/.config/nvim/lua/plugins/statusline.lua b/neovim/.config/nvim/lua/plugins/statusline.lua
new file mode 100644
index 0000000..b93b34c
--- /dev/null
+++ b/neovim/.config/nvim/lua/plugins/statusline.lua
@@ -0,0 +1,23 @@
+return {
+  "bling/vim-airline",
+  lazy = false,
+  dependencies = {
+    "vim-airline/vim-airline-themes",
+    "edkolev/tmuxline.vim",
+  },
+  init = function()
+    -- On arch linux install the following:
+    -- otf-powerline-symbols-git
+    -- powerline-fonts-git
+    vim.g.airline_powerline_fonts = 1
+    vim.g["airline#extensions#tabline#enabled"] = 1
+
+    -- vim.g dict reads return a copy, not a live reference, so the nested
+    -- field has to be set via a local table and reassigned.
+    local symbols = vim.g.airline_symbols or {}
+    symbols.space = "\u{a0}"
+    vim.g.airline_symbols = symbols
+
+    vim.opt.laststatus = 2
+  end,
+}