Migrate 4 more Advanced items (Electron, Factory Reset, Virtual Consoles, Emergency Hotspot); bump to v2.11.0

New in install.sh's Advanced menu, alongside Diagnostics:
- menus/advanced_electron.sh: "Electron Maintenance" - the legacy
  "Manual Electron Update" and "Fix Blank Screen" combined into one
  submenu, sharing the binary-repair logic (electron_install_binary).
- menus/advanced_factory_reset.sh: "Factory Reset" - wipes config.json
  back to defaults only; addons are untouched.
- menus/advanced_virtual_consoles.sh: "Virtual Consoles" - toggles
  Ctrl+Alt+F1-F8 terminal login access.
- menus/advanced_emergency_hotspot.sh: "Emergency Hotspot" - auto-starts
  a WiFi hotspot if no internet is detected 60 seconds after boot. Its
  own runtime script and systemd unit now go through $BIN_DIR/
  $SYSTEMD_DIR like every other addon's own files, instead of the
  legacy's hardcoded /usr/local/bin and /etc/systemd/system.

That covers 8 of the legacy Advanced menu's 12 entries. Not migrated
this round: Export/Import Settings (pending a decision on rebuilding it
around actual paths vs. a hardcoded step list, or whether the future
web UI replaces the need for it) and Fix Squeezelite Audio (small
enough it may fold into the LMS addon instead of staying standalone).

Full command-level stubbed test suite per file, including set -e safety
checks (declined/failed paths never crash the session) and content
verification for every written file. Full 18-suite regression + real
end-to-end menu navigation via install.sh all pass.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VfsFSoRqfbRG7XAg5RoE7e

ubuntu-based-kiosk.sh

@@ -1,8 +1,39 @@
 #!/bin/bash
 ################################################################################
-###   Ubuntu Based Kiosk v2.10.0               ###
+###   Ubuntu Based Kiosk v2.11.0               ###
 ################################################################################
 #
+# RELEASE v2.11.0 - 4 More Advanced Items Migrated (Electron Maintenance,
+#                    Factory Reset, Virtual Consoles, Emergency Hotspot)
+# - New in ./install.sh's Advanced menu, alongside Diagnostics:
+#   - menus/advanced_electron.sh - "Electron Maintenance": the legacy
+#     "Manual Electron Update" and "Fix Blank Screen" combined under one
+#     submenu, since both maintain the same installation and share the
+#     binary-repair logic (electron_install_binary).
+#   - menus/advanced_factory_reset.sh - "Factory Reset": wipes
+#     config.json back to defaults only - addons are untouched.
+#   - menus/advanced_virtual_consoles.sh - "Virtual Consoles": toggles
+#     Ctrl+Alt+F1-F8 terminal login access.
+#   - menus/advanced_emergency_hotspot.sh - "Emergency Hotspot": auto-
+#     starts a WiFi hotspot if no internet is detected 60 seconds after
+#     boot. Its own runtime script and systemd unit now go through
+#     $BIN_DIR/$SYSTEMD_DIR like every other addon's own files, instead
+#     of the legacy's hardcoded /usr/local/bin and /etc/systemd/system.
+# - That leaves Diagnostics' original 4 items plus these 4 covering 8 of
+#   the legacy Advanced menu's 12 entries. Not migrated this round:
+#   Export/Import Settings (kept in the legacy script pending a decision
+#   on whether it's worth rebuilding around actual paths instead of a
+#   hardcoded per-addon step list, or whether the future web UI replaces
+#   the need for it) and Fix Squeezelite Audio (small and specific
+#   enough that it may fold into menus/addon_lms_squeezelite.sh instead
+#   of staying a standalone Advanced entry - not decided yet).
+# - Complete Uninstall (the last of the "destructive trio") is next,
+#   composed from each addon's own uninstall action plus core teardown
+#   rather than rewriting removal logic a second time. Upgrade and Full
+#   Reinstall stay in this script for now: both are fundamentally
+#   coupled to this file's own heredoc self-extraction of main.js/
+#   preload.js/etc, which has no equivalent yet in the modular system.
+#
 # RELEASE v2.10.0 - Asterisk Intercom Migrated, Redesigned as a SIP
 #                    Extension Client (No More PBX Server Install)
 # - New in ./install.sh: Asterisk Intercom (menus/addon_asterisk_intercom.sh).
@@ -379,7 +410,7 @@ set -euo pipefail
 ### SECTION 1: CONSTANTS & GLOBALS
 ################################################################################
 
-SCRIPT_VERSION="2.10.0"
+SCRIPT_VERSION="2.11.0"
 
 # Resolve the real path to this script file.
 # When piped (curl|bash or wget|bash), BASH_SOURCE[0] is a pipe descriptor,