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_config/kitty/kitty.conf

@@ -0,0 +1,19 @@
+# Font Configuration
+font_family      JetBrainsMono Nerd Font
+bold_font        auto
+italic_font      auto
+bold_italic_font auto
+
+shell /usr/bin/tmux new-session -A -D -s main
+
+# Terminal Type
+term xterm-256color
+
+map shift+enter send_text all \x1b[13;2u
+
+confirm_os_window_close 0
+
+# BEGIN_KITTY_THEME
+# Catppuccin-Mocha
+include current-theme.conf
+# END_KITTY_THEME