feat(nushell): Add env.nu with zoxide init and stow it

- Add env.nu that initializes zoxide for nushell
- Source ~/.zoxide.nu in config.nu
- Update stow_nushell_config to also handle env.nu stowing

Signed-off-by: Eduardo Apolinario <eapolinario@users.noreply.github.com>

Author: eapolinario

omarchy/install.sh

@@ -264,11 +264,10 @@ stow_nushell_config() {
 
   local config_home="${XDG_CONFIG_HOME:-$HOME/.config}"
   local nushell_dir="$config_home/nushell"
-  local config_source="$SCRIPT_DIR/nushell/.config/nushell/config.nu"
-  local config_target="$nushell_dir/config.nu"
 
   mkdir -p "$nushell_dir"
-  remove_target_if_identical "$config_target" "$config_source"
+  remove_target_if_identical "$nushell_dir/config.nu" "$SCRIPT_DIR/nushell/.config/nushell/config.nu"
+  remove_target_if_identical "$nushell_dir/env.nu" "$SCRIPT_DIR/nushell/.config/nushell/env.nu"
 
   stow "${STOW_FLAGS[@]}" -d "$SCRIPT_DIR" -vt "$HOME" nushell
 }

omarchy/nushell/.config/nushell/config.nu

@@ -17,3 +17,5 @@
 # options using:
 #     config nu --doc | nu-highlight | less -R
 use /home/eduardo/repos/claude-nu/claude-nu/
+
+source ~/.zoxide.nu

omarchy/nushell/.config/nushell/env.nu

@@ -0,0 +1,21 @@
+# env.nu
+#
+#
+# Installed by:
+# version = "0.107.0"
+#
+# Previously, environment variables were typically configured in `env.nu`.
+# In general, most configuration can and should be performed in `config.nu`
+# or one of the autoload directories.
+#
+# This file is generated for backwards compatibility for now.
+# It is loaded before config.nu and login.nu
+#
+# See https://www.nushell.sh/book/configuration.html
+#
+# Also see `help config env` for more options.
+#
+# You can remove these comments if you want or leave
+# them for future reference.
+#
+zoxide init nushell | save -f ~/.zoxide.nu