config(nvim): add AstroNvim config; font: VictorMono NF via packages

nvim added static from live home; vendored .git/tool-state dirs removed
and ignore-gated against re-add. ttf-victor-mono-nerd (arch) and
font-victor-mono-nerd-font cask (darwin) added to packages manifest.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

dot_config/nvim/lua/plugins/treesitter.lua

@@ -0,0 +1,24 @@
+if true then return {} end -- WARN: REMOVE THIS LINE TO ACTIVATE THIS FILE
+
+-- Customize Treesitter
+-- --------------------
+-- Treesitter customizations are handled with AstroCore
+-- as nvim-treesitter simply provides a download utility for parsers
+
+---@type LazySpec
+return {
+  "AstroNvim/astrocore",
+  ---@type AstroCoreOpts
+  opts = {
+    treesitter = {
+      highlight = true, -- enable/disable treesitter based highlighting
+      indent = true, -- enable/disable treesitter based indentation
+      auto_install = true, -- enable/disable automatic installation of detected languages
+      ensure_installed = {
+        "lua",
+        "vim",
+        -- add more arguments for adding more treesitter parsers
+      },
+    },
+  },
+}