Settings: its rows in five groups

Settings had grown to 21 rows in one list. It opens on five groups (This
device, Display, GNSS and radio, Network, System); Enter opens one, Back
returns to the groups, and Back from the groups leaves Settings.

SettingsMenu holds the groups and which one is open (host-tested: every
setting is in exactly one group). The guide, the how-tos, the README,
the scripts' messages and the firmware's own name the new paths, such as
"Settings > System > Firmware".

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0162FokPdvY2KsS4NBfwyWPk

scripts/rdbg.py

@@ -1,11 +1,11 @@
 #!/usr/bin/env python3
-"""The Debug Console, over Wi-Fi (TCP 2323, see ADR 0010). Switch it on first: Settings > Debug Console.
+"""The Debug Console, over Wi-Fi (TCP 2323, see ADR 0010). Switch it on first: Settings > System > Debug Console.
 
 Usage: scripts/rdbg.py [-H host] [-t token] [-b] [command ...]
   no command   interactive: type commands, see every console line live; Ctrl-D or `quit` leaves
   command      runs it and prints what follows, until the console has been quiet for a moment
-  -H host      the device's IP (Settings > Debug Console), default $RORO_OTA_HOST
-  -t token     the device's token (also --token), as Settings > Debug Console shows it: dashes and
+  -H host      the device's IP (Settings > System > Debug Console), default $RORO_OTA_HOST
+  -t token     the device's token (also --token), as Settings > System > Debug Console shows it: dashes and
                case don't matter. Otherwise $RORO_DEBUG_TOKEN, otherwise ~/.config/roro9stack/debug-token
   -b           also print the backlog the device sends on connecting (boot messages and so on)
 
@@ -55,7 +55,7 @@ def find_token(given):
     token = tidy_token(token or "")
     if not token:
         sys.exit("No token: pass -t <token>, set RORO_DEBUG_TOKEN, or put it in " + TOKEN_FILE +
-                 "\n(the device shows it in Settings > Debug Console)")
+                 "\n(the device shows it in Settings > System > Debug Console)")
     return token
 
 
@@ -63,7 +63,7 @@ def log_in(sock, token):
     """Answers the device's challenge; returns the banner line, or exits saying what went wrong."""
     first = read_until(sock, b"\n", 10)
     if first is None:
-        sys.exit("device: nothing came back. Is the console switched on (Settings > Debug Console)?")
+        sys.exit("device: nothing came back. Is the console switched on (Settings > System > Debug Console)?")
     line = first.decode(errors="replace").strip()
     if line.startswith("locked"):
         sys.exit("device: closed for a minute after too many wrong tokens")
@@ -75,7 +75,7 @@ def log_in(sock, token):
     if banner is None:
         sys.exit("device: no answer")
     if banner.startswith(b"denied"):
-        sys.exit("device: wrong token (Settings > Debug Console shows the right one)")
+        sys.exit("device: wrong token (Settings > System > Debug Console shows the right one)")
     return banner
 
 
@@ -326,7 +326,7 @@ def main():
     try:
         sock = socket.create_connection((host, PORT), timeout=10)
     except OSError as e:
-        sys.exit(f"device: can't connect to {host}:{PORT} ({e}). Is the console switched on (Settings > Debug Console)?")
+        sys.exit(f"device: can't connect to {host}:{PORT} ({e}). Is the console switched on (Settings > System > Debug Console)?")
     with sock:
         banner = log_in(sock, token)
         show = sys.stdout if backlog or not args else None