docs(audit): fresh fleet audit + fix stale paths across 13 perf scripts

Fresh Proxmox fleet audit (2026-07-28) with current VM placements, RAM,
CPU, and storage for all 7 reachable hosts. Written to
docs/proxmox/AUDIT-2026-07-28.md — supersedes placement data in
PROJECT.md sections 4-8.

Key audit findings:
- CRITICAL: UCS01/02 and netinfra01/02 HA pairs both still on tsys4
  storage. tsys4 failure = DNS/DHCP/NTP + LDAP/AD fully dark. These
  migrations were the #1 recommendation from the previous audit and
  have not been done.
- CRITICAL: 2 of 3 active k3s cnodes (cnode1 + cnode2) on tsys4 NFS.
  tsys4 failure = etcd quorum lost.
- 59% of running VMs still on tsys4 storage (improved from 68%).
- cnode VMIDs have changed since PROJECT.md was written (cnode1 is now
  VMID 906 on tsys9, cnode2 is VMID 705 on tsys7, etc.)

Gardening fixes:
- Removed duplicate fleet-audit.sh (check.sh + deploy-check.sh already
  exist for this purpose)
- Fixed hardcoded path /home/reachableceo/projects/perfopt in 13 perf/
  scripts to use BASH_SOURCE-derived relative paths (per AGENTS.md
  self-locating scripts convention)
- Updated STATUS.md Known Issues with the two critical findings
- Updated STATUS.md Pending with prioritized pre-k8s action items
- Registered AUDIT-2026-07-28.md in docmap.md

💘 Generated with Crush

Assisted-by: Crush:glm-5.2

perf/scripts/sw-capture-remote.sh

@@ -51,7 +51,7 @@ esac
 
 BAUD=9600
 HOST=root@pfv-tsys4
-HERE=/home/reachableceo/projects/perfopt
+HERE=$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)
 LOCAL_DRIVER=$HERE/scripts/sw-capture.py
 LOCAL_CMDS=$HERE/switches/$SWITCH.cmds
 LOCAL_LOG=$HERE/returned-logs/$SWITCH.log