Migrate to chezmoi with per-host sway/waybar configs

- Restructure repo into chezmoi source layout (dot_ prefix)
- Add .chezmoi.toml.tmpl mapping hostname to hosttype (laptop/desktop)
- Template sway config.d fragments (outputs/inputs/binds) per host
- Template waybar config.jsonc with shared bar/module definitions
- Host-scope pulsemeeter (flow) and teams-for-linux (desktop hosts) via .chezmoiignore
- Trim install.sh package lists to configured software + config deps
- Remove stale kitty.conf.bak and untracked host fragments

dot_zshrc

@@ -0,0 +1,27 @@
+#
+# ~/.zshrc
+#
+
+# If not running interactively, don't do anything
+[[ $- != *i* ]] && return
+
+bindkey "^A" beginning-of-line
+bindkey "^E" end-of-line
+bindkey "^[[1;5C" forward-word
+bindkey "^[[1;5D" backward-word
+bindkey "^[[3~" delete-char
+
+alias ls='ls --color=auto'
+alias grep='grep --color=auto'
+alias dotfiles='chezmoi'
+
+eval "$(starship init zsh)"
+
+export PATH=~/.local/bin:$PATH
+export SSH_AUTH_SOCK=/home/pmcc/.bitwarden-ssh-agent.sock
+
+for file in ~/.config/zsh/*.zsh; do
+  [ -r "$file" ] && source "$file"
+done
+
+. "$HOME/.local/share/../bin/env"