docs: sync README/QUICK_START/EFFORT_MAPPING with current code

- Update ai-openrouter models in ai-setup.sh output and header
- Fix effort persistence wording (statusbar -> launcher)
- Unify KS_EXCEPTIONS -> KILL_SWITCH_EXCEPTIONS in docs and setup.sh prompt
- Clarify menu item 7 only updates AI launchers
- Add IPv6 note after ks-off.sh
- Scope UFW before.rules insertion to *filter section

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

setup.sh

@@ -113,7 +113,7 @@ case "$choice" in
     read -rp "DEV (интерфейс)               [${auto_dev}]: " dev
     read -rp "LOCAL_DNS (DNS для *.loc)      [${saved_local_dns:-пусто}]: " local_dns
     read -rp "AMNEZIA_SERVER (IP/домен сервера Amnezia)  [${saved_amn_srv:-пусто}]: " amn_srv
-    read -e -rp "KS_EXCEPTIONS (исключения kill switch: IP/домены через пробел): " -i "${saved_ks_exc}" ks_exc
+    read -e -rp "KILL_SWITCH_EXCEPTIONS (исключения kill switch: IP/домены через пробел): " -i "${saved_ks_exc}" ks_exc
     gw="${gw:-$auto_gw}"
     dev="${dev:-$auto_dev}"
     [ "$local_dns" = "пусто" ] && local_dns=""