chore: rebrand backone names, add lint gate + agent docs

- CI: build/validate use backone selftest + binary names, add lint.yml
- make-*.mk: emit/install backone binaries, drop zerotier-one paths
- doc/debian/ext.installfiles: backone manpages, service, init, te
- rule-compiler: npm test runs test.js; attic world planet files
- AGENTS.md repository guidelines, tools/lint.sh changed-lines gate
- gitignore: /backone-selftest, *.gcno, *.gcda

entrypoint.sh.release

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 grepzt() {
-  [ -f /var/lib/zerotier-one/zerotier-one.pid -a -n "$(cat /var/lib/zerotier-one/zerotier-one.pid 2>/dev/null)" -a -d "/proc/$(cat /var/lib/zerotier-one/zerotier-one.pid 2>/dev/null)" ]
+  [ -f "$ZEROTIER_HOME/$ZT_PID_FILE" -a -n "$(cat "$ZEROTIER_HOME/$ZT_PID_FILE" 2>/dev/null)" -a -d "/proc/$(cat "$ZEROTIER_HOME/$ZT_PID_FILE" 2>/dev/null)" ]
   return $?
 }
 
@@ -10,9 +10,9 @@ mkztfile() {
   mode=$2
   content=$3
 
-  mkdir -p /var/lib/zerotier-one
-  echo "$content" > "/var/lib/zerotier-one/$file"
-  chmod "$mode" "/var/lib/zerotier-one/$file"
+  mkdir -p "$ZEROTIER_HOME"
+  echo "$content" > "$ZEROTIER_HOME/$file"
+  chmod "$mode" "$ZEROTIER_HOME/$file"
 }
 
 if [ "x$ZEROTIER_API_SECRET" != "x" ]
@@ -30,11 +30,11 @@ then
   mkztfile identity.secret 0600 "$ZEROTIER_IDENTITY_SECRET"
 fi
 
-mkztfile zerotier-one.port 0600 "9993"
+mkztfile "$ZT_PORT_FILE" 0600 "9993"
 
 killzerotier() {
   log "Killing zerotier"
-  kill $(cat /var/lib/zerotier-one/zerotier-one.pid 2>/dev/null)
+  kill $(cat "$ZEROTIER_HOME/$ZT_PID_FILE" 2>/dev/null)
   exit 0
 }
 
@@ -69,13 +69,13 @@ log_detail_params() {
 trap killzerotier INT TERM
 
 log "Configuring networks to join"
-mkdir -p /var/lib/zerotier-one/networks.d
+mkdir -p "$ZEROTIER_HOME/networks.d"
 
 log_params "Joining networks from command line:" $@
 for i in "$@"
 do
   log_detail_params "Configuring join:" "$i"
-  touch "/var/lib/zerotier-one/networks.d/${i}.conf"
+  touch "$ZEROTIER_HOME/networks.d/${i}.conf"
 done
 
 if [ "x$ZEROTIER_JOIN_NETWORKS" != "x" ]
@@ -84,12 +84,12 @@ then
   for i in $ZEROTIER_JOIN_NETWORKS
   do
     log_detail_params "Configuring join:" "$i"
-    touch "/var/lib/zerotier-one/networks.d/${i}.conf"
+  touch "$ZEROTIER_HOME/networks.d/${i}.conf"
   done
 fi
 
 log "Starting ZeroTier"
-nohup /usr/sbin/zerotier-one &
+nohup "$ZT_DAEMON" &
 
 while ! grepzt
 do
@@ -109,13 +109,13 @@ cat >/healthcheck.sh <<EOF
 #!/bin/bash
 for i in $@ $ZEROTIER_JOIN_NETWORKS
 do
-  [ "\$(zerotier-cli get \$i status)" = "OK" ] || exit 1
+  [ "\$($ZT_CLI get \$i status)" = "OK" ] || exit 1
 done
 EOF
 
 chmod +x /healthcheck.sh
 
-log_params "zerotier-cli info:" "$(zerotier-cli info)"
+log_params "$ZT_CLI info:" "$($ZT_CLI info)"
 
 log "Sleeping infinitely"
 while true