feat(system): configure nano (-FEDSMAGic/max%_T2) as EDITOR, less -RXF as PAGER, add ed/rlwrap/less, and remove vim

overlay/rootfs/etc/profile

@@ -0,0 +1,27 @@
+export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+
+export EDITOR=nano
+export VISUAL=nano
+export PAGER="less -RXF"
+export LESS="-RXF"
+umask 022
+
+# use nicer PS1 for bash and busybox ash
+if [ -n "$BASH_VERSION" -o "$BB_ASH_VERSION" ]; then
+	PS1='\h:\w\$ '
+# use nicer PS1 for zsh
+elif [ -n "$ZSH_VERSION" ]; then
+	PS1='%m:%~%# '
+# set up fallback default PS1
+else
+	: "${HOSTNAME:=$(hostname)}"
+	PS1='${HOSTNAME%%.*}:$PWD'
+	[ "$(id -u)" -eq 0 ] && PS1="${PS1}# " || PS1="${PS1}\$ "
+fi
+
+for script in /etc/profile.d/*.sh ; do
+	if [ -r "$script" ] ; then
+		. "$script"
+	fi
+done
+unset script