refactor(switches): standardize all switch names to <site>-<rack>-<function>-<NN>

Rename all 5 switches across all layers (DNS, DHCP, device hostname,
conman console, ser2net, udev symlinks, repo files) to follow the
<site>-<rack>-<function>-<count> convention:
  pfv-core-sw01    → pfv-r5-core-01     (rack 5 core)
  pfv-tor3-mgmt    → pfv-r3-tor-mgmt-01 (rack 3 mgmt TOR)
  pfv-tor3-stor    → pfv-r3-tor-stor-01 (rack 3 storage TOR)
  pfv-r2-tor-top   → pfv-r2-tor-01      (rack 2 TOR)
  subodev-torsw01  → pfv-r6-mgmt-01     (rack 6 mgmt)

Dead switch (pfv-r2-sw, port 2007) removed from mapping.txt.
pfv-rrinfra-rtr unchanged (router, not a switch).

Device hostnames changed via conman. Configs regenerated on pfv-tsys4.
All .cmds files, validate-conman.sh, and AGENTS.md updated. [#369]

💘 Generated with Crush

Assisted-by: Crush:glm-5.2

dcinfra/console/generate-config.sh

@@ -6,7 +6,7 @@
 # config files. This is the fix for the USB enumeration shift problem:
 #
 #   1. udev rules pin each adapter by its STABLE ID_PATH (physical USB port)
-#      to a named symlink like /dev/consoles/pfv-core-sw01
+#      to a named symlink like /dev/consoles/pfv-r5-core-01
 #   2. ser2net opens those stable symlinks and exposes them on TCP ports
 #      (2001, 2002, ...) bound to the Tailscale IP
 #   3. conman connects to those TCP ports for logging + multiplexing

dcinfra/console/mapping.txt

@@ -17,13 +17,13 @@
 #   2. Update the id_path_substring in this file
 #   3. Run: bash console/generate-config.sh && udevadm trigger && systemctl restart ser2net conmand
 #
-2001|pfv-core-sw01|usb-0:1.5.4.4|9600n81|Dell PowerConnect 5448 (core switch)
-2002|pfv-tor3-mgmt|usb-0:1.6.3.1|9600n81|Rack 3 management TOR switch
-2003|pfv-tor3-stor|usb-0:1.6.3.3.2|9600n81|Rack 3 storage TOR switch
+2001|pfv-r5-core-01|usb-0:1.5.4.4|9600n81|Dell PowerConnect 5448 (rack 5 core switch)
+2002|pfv-r3-tor-mgmt-01|usb-0:1.6.3.1|9600n81|Rack 3 management TOR switch
+2003|pfv-r3-tor-stor-01|usb-0:1.6.3.3.2|9600n81|Rack 3 storage TOR switch
 2004|pfv-rrinfra-rtr|usb-0:1.6.3.3.1|9600n81|Cisco router (rrinfra)
-2005|pfv-r2-tor-top|usb-0:1.6.3.3.3|9600n81|Rack 2 top-of-rack switch
-2006|subodev-torsw|usb-0:1.5.4.1|9600n81|Suborbital device TOR switch
-2007|pfv-r2-sw|usb-0:1.6.3.2|9600n81|Rack 2 old Dell switch
+2005|pfv-r2-tor-01|usb-0:1.6.3.3.3|9600n81|Rack 2 TOR switch
+2006|pfv-r6-mgmt-01|usb-0:1.5.4.1|9600n81|Rack 6 management switch
+# 2007|pfv-r2-sw|usb-0:1.6.3.2|9600n81|Rack 2 old Dell switch (dead, removed)
 # Unassigned (no device detected):
 # 2008|spare-1|usb-0:1.6.3.4|9600n81|Empty / spare
 # 2009|spare-2|usb-0:1.6.3.3.4|9600n81|Empty / spare

dcinfra/console/query-remote.sh

@@ -5,7 +5,7 @@
 #
 # Usage:
 #   bash console/query-remote.sh                    # list consoles
-#   bash console/query-remote.sh pfv-core-sw01      # connect to a console
+#   bash console/query-remote.sh pfv-r5-core-01      # connect to a console
 #
 set -euo pipefail
 
@@ -52,7 +52,7 @@ if [ -z "$CONSOLE" ]; then
   conman -d "${REMOTE_HOST}:${REMOTE_PORT}" -q
   echo ""
   echo "To connect: bash $0 <console-name>"
-  echo "  e.g: bash $0 pfv-core-sw01"
+  echo "  e.g: bash $0 pfv-r5-core-01"
 else
   echo ""
   echo "--- Connecting to: $CONSOLE ---"

dcinfra/console/setup.sh

@@ -202,7 +202,7 @@ echo "    ser2net owns serial devices, exposes telnet(rfc2217) TCP ports"
 echo "    conman connects via telnet for logging + multiplexing"
 echo ""
 echo "  Connect from any Tailscale workstation:"
-echo "    conman -d pfv-tsys4:7890 -f pfv-core-sw01"
+echo "    conman -d pfv-tsys4:7890 -f pfv-r5-core-01"
 echo "    conman -d pfv-tsys4:7890 -q              # list consoles"
 echo ""
 echo "  Direct telnet (emergency, conflicts with conman):"

dcinfra/console/validate-conman.sh

@@ -45,7 +45,7 @@ echo "--- 3. Trigger log capture: connect to each console briefly ---"
 echo "  conmand connects to all consoles on startup. Checking if logs exist..."
 echo ""
 echo "--- 4. Log file inventory ---"
-for name in pfv-core-sw01 pfv-tor3-mgmt pfv-tor3-stor pfv-rrinfra-rtr pfv-r2-tor-top subodev-torsw pfv-r2-sw; do
+for name in pfv-r5-core-01 pfv-r3-tor-mgmt-01 pfv-r3-tor-stor-01 pfv-rrinfra-rtr pfv-r2-tor-01 pfv-r6-mgmt-01; do
   logfile="$LOGDIR/${name}.log"
   if [ -f "$logfile" ]; then
     SIZE=$(stat -c%s "$logfile" 2>/dev/null || echo 0)