Make the rice shareable: appearance-only default, --with-shell, --layouts, --restore, 07-input and 99-personal split

- default install: SwayFX + DMS + kitty + fonts/theme + hotkeys/screenshots only
- zsh/tmux/CLI tools behind --with-shell; personal apps/autostart/mouse speed removed from the repo
- keyboard layouts prompt/--layouts, user-editable files (07-input.conf, dms/settings.json) never overwritten
- --restore (oldest backup), unique backup dirs, README rewritten for strangers, private URL removed

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

.config/sway/config

@@ -216,9 +216,6 @@ include ~/.config/sway/config.d/*.conf
 
 
 
-input "type:keyboard" {
-    xkb_layout "us,ru"
-    xkb_options "grp:alt_shift_toggle,grp_led:scroll"
-}
+# Keyboard, touchpad: see config.d/07-input.conf