Add Arch Wayland dotfiles: sway/waybar/kitty/nvim/zsh, idempotent installer

Auto-adapts sway workspace routing to however many monitors are
connected (laptop vs. desktop) instead of hardcoding output names.

home/.zshrc

@@ -0,0 +1,16 @@
+export ZDOTDIR="${ZDOTDIR:-$HOME}"
+export ZSH_CONFIG_DIR="$HOME/.zsh.d"
+
+setopt null_glob
+for zsh_config in "$ZSH_CONFIG_DIR"/*.zsh; do
+  source "$zsh_config"
+done
+unset zsh_config
+
+
+# opencode
+export PATH=/home/owen/.opencode/bin:$PATH
+export PATH="$HOME/.npm-global/bin:$PATH"
+
+# 1Password service account (scoped to Homelab vault) — headless CLI auth, no biometric prompts
+export OP_SERVICE_ACCOUNT_TOKEN="$(cat ~/.config/op/homelab-agent.token 2>/dev/null)"