fix(console): fix udev symlink naming bug + add portable audit tooling

Console fix: generate-config.sh wrote SYMLINK+="console/$name" (singular)
but ser2net.yaml opens /dev/consoles/$name (plural). They never matched,
so after every reboot the console ports failed until setup.sh's manual
fallback re-created the symlinks. Fixed the udev rule to use "consoles/"
to match ser2net and the README.

New portable read-only audit tools (AGPLv3-friendly, config-driven):
- perf/scripts/probe-storage.sh: disk/mount/export/SMART/storage.cfg probe
- perf/scripts/probe-network.sh: NIC/bond/LLDP/NFS/nconnect probe
- perf/scripts/conman-console.py: PTY-based conman console driver (replaces
  the old sw-capture.py that conflicted with ser2net)
- perf/scripts/snmp-switch-audit.py: SNMP-based switch inventory (interfaces,
  LLDP, LAG, VLANs) via pysnmp or net-snmp

Removed stale pre-conman switch tooling (sw-capture-remote.sh, sw-capture.py,
sw-probe.sh, sw-conman-probe.sh) and old .cmds files. Added fresh .cmds
files for the two cross-rack trunk endpoint switches.

💘 Generated with Crush

Assisted-by: Crush:glm-5.2

switches/pfv-core-sw01.cmds

@@ -1,93 +1,11 @@
-!###############################################################################
-!# pfv-core-sw01
-!#
-!# Dell PowerConnect 5448  (48-port 1GbE copper, 4× combo SFP / 10G via stacking)
-!# OS: DNOS 4.x / PowerConnect CLI
-!#
-!# This file is a flat list of READ-ONLY show commands.
-!# Paste them in order from enable mode. Capture the whole session to
-!# returned-logs/pfv-core-sw01.log
-!#
-!# To capture from a terminal:
-!#     1. SSH/telnet in
-!#     2. enable
-!#     3. terminal datadump              (disables --More-- pause)
-!#     4. paste everything below
-!###############################################################################
-
-enable
+! pfv-core-sw01 — Dell PowerConnect 5448 (core switch, rack 5)
+! Read-only show commands for LAG/port-channel/VLAN audit
 terminal datadump
-
-! --- Identify & versions ---------------------------------------------------
 show version
-show system
-show inventory
-show bootvar
-show running-config
-show stack
-show cpu utilization
-show memory
-show logging
-
-! --- Interfaces ------------------------------------------------------------
 show interfaces status
-show interfaces configuration
-show interfaces description
-show interfaces counters
-show interfaces counters errors
-show interfaces counters detail
-show interfaces counters cable 1-52
-
-! --- Port-channels / LAG (4-port LACP to pfv-r3-tor-stor) -----------------
 show interfaces port-channel
-show lacp 1
-show lacp 2
-show lacp 3
-show lacp 4
-show lacp 5
-show lacp 6
-
-! --- VLANs -----------------------------------------------------------------
+show port-channel summary
+show lacp
 show vlan
-show vlan detail
-show interfaces vlan 1
-show interfaces vlan 1000
-show vlan info
-
-! --- Spanning tree ---------------------------------------------------------
-show spanning-tree
-show spanning-tree active
-show spanning-tree summary
-show spanning-tree detail
-
-! --- IGMP / multicast (matters for storage/iSCSI-NFS sometimes) -----------
-show ip igmp snooping
-show ip igmp snooping vlan 1
-show ip igmp snooping vlan 1000
-
-! --- QoS / CoS -------------------------------------------------------------
-show qos
-show qos interface
-show class-of-service
-
-! --- Storm control / loop protection --------------------------------------
-show storm-control
-show ports jumbo-frame
-
-! --- ARP / MAC / FDB -------------------------------------------------------
-show mac address-table
-show arp
-show ip route
-
-! --- Environmental ---------------------------------------------------------
-show environment
-show fan
-show power
-show hardware
-
-! --- Flow control ----------------------------------------------------------
-show flowcontrol
-show interfaces flowcontrol
-
-! --- Save the capture, then exit ------------------------------------------
-exit
+show running-config interface port-channel 1
+show running-config interface port-channel 3