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

pkg/snap/snapcraft.yaml

@@ -1,13 +1,13 @@
-name: zerotier
+name: backone
 summary: Securely connect any device, anywhere.
 description: |
 
-  ZeroTier is a software-based managed Ethernet switch for planet Earth. Use it to connect your
-  desktop clients, servers, phones, NAS, or even individual applications (using our SDK).
+  BackOne is a fork of ZeroTier, a software-based managed Ethernet switch for planet Earth. Use it
+  to connect your desktop clients, servers, phones, NAS, or even individual applications (using
+  our SDK).
 
-  This snap contains ZeroTier One, a service that provides ZeroTier network connectivity and
-  makes joining virtual networks as easy as joining IRC or Slack channels. Apps for Android
-  and iOS are available for free in the Google Play and Apple app stores.
+  This snap contains the BackOne daemon, a service that provides ZeroTier network connectivity
+  and makes joining virtual networks as easy as joining IRC or Slack channels.
 
   ZeroTier eliminates the LAN/WAN distinction and makes VPNs, tunnels, proxies, and other kludges
   arising from the inflexible nature of physical networks obsolete. Everything is encrypted
@@ -15,14 +15,12 @@ description: |
 
   Install (be sure to use sudo)
 
-    sudo snap install zerotier
+    sudo snap install backone
 
   Join your network
 
-    sudo zerotier join <nwid>
-    sudo zerotier status
-
-  Approve your new node in ZeroTier Central (https://my.zerotier.com)! Welcome online!
+    sudo backone join <nwid>
+    sudo backone status
 
 adopt-info: one
 confinement: strict
@@ -32,41 +30,39 @@ base: core18
 apps:
   one:
     # Add -U to prevent attempting to drop privileges since snaps have their
-    # own containment mechanism. Otherwise, if a user named "zerotier-one"
+    # own containment mechanism. Otherwise, if a user named "backone"
     # exists on the system, the setgid or related calls will fail.
-    command: usr/sbin/zerotier-one -U
+    command: usr/sbin/backone -U
     daemon: simple
     plugs:
       - network
       - network-bind
       - network-control
 
-  # For backwards compatibility with old package (e.g. zerotier.cli)
-  # Should be removed someday
   cli:
-    command: usr/sbin/zerotier-cli
+    command: usr/sbin/backone-cli
     plugs:
       - network
 
-  zerotier:
-    command: usr/sbin/zerotier-cli
+  backone:
+    command: usr/sbin/backone-cli
     plugs:
       - network
 
   idtool:
-    command: usr/sbin/zerotier-idtool
+    command: usr/sbin/backone-idtool
     plugs:
       - network
 
 layout:
-  /var/lib/zerotier-one:
+  /var/lib/backone:
     bind: $SNAP_COMMON
 
 parts:
   one:
     plugin: make
-    source: https://github.com/zerotier/zerotierone.git
-    source-branch: "master"
+    source: https://git.proit.id/dsutanto/BackOne.git
+    source-branch: "main"
     build-packages:
       - build-essential
       - libc++-dev
@@ -74,17 +70,17 @@ parts:
       - ZT_SSO_SUPPORTED=0
     filesets:
       binaries:
-        - usr/sbin/zerotier-one
-        - usr/sbin/zerotier-cli
-        - usr/sbin/zerotier-idtool
+        - usr/sbin/backone
+        - usr/sbin/backone-cli
+        - usr/sbin/backone-idtool
     prime:
       - $binaries
     override-build: |
       snapcraftctl build
       # Grab the version string from the newly-compiled binary.
-      snapcraftctl set-version "$(./zerotier-one -v)"
+      snapcraftctl set-version "$(./backone -v)"
 slots:
-  zerotier-control:
+  backone-control:
     interface: content
     read:
       - $SNAP_COMMON