refactor: reorganize merged repo into clean directory structure

Reorganize the merged KNELServerBuild + PFVCluster repo:

  provisioning/    server provisioning (was ProjectCode/ +
                   Project-Includes/ + Project-ConfigFiles/)
  tests/           test suite (was Project-Tests/)
  perf/            Proxmox perf scripts (was top-level *.sh + scripts/)
  docs/            all documentation (was ProjectDocs/ + PROJECT.md +
                   K8S.md + TODO.md)
  dns-cluster-setup/  Technitium DNS cluster (unchanged)
  netinfra/        netinfra audit scripts (unchanged)
  switches/        switch configs (unchanged)
  vendor/          vendored KNELShellFramework (unchanged)

Update all internal path references from old directory names
(ProjectCode/, Project-Includes/, Project-Tests/) to the new ones
(provisioning/, tests/) across all scripts.

🤖 Generated with [Crush](https://github.com/charmassociates/crush)

Assisted-by: GLM-5 via Crush <crush@charm.land>

perf/check-pkgs.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+# check-pkgs.sh - verify package install state.
+set -uo pipefail
+SSH_OPTS=(-o BatchMode=yes -o ConnectTimeout=8 -o StrictHostKeyChecking=accept-new)
+
+for host in pfv-tsys6 pfv-tsys7; do
+    echo "=== $host ==="
+    ssh "${SSH_OPTS[@]}" "root@$host" '
+        for p in sysstat jq numactl nvme mtr-tiny dig bmon tcpdump; do
+            if command -v "$p" >/dev/null 2>&1; then
+                echo "  ✓ $p"
+            else
+                echo "  ✗ $p"
+            fi
+        done
+        # sysstat config
+        echo "  sysstat service:"
+        systemctl list-unit-files 2>/dev/null | grep -i sysstat | sed "s/^/    /"
+        echo "  sysstat enabled in /etc/default:"
+        if [ -r /etc/default/sysstat ]; then
+            grep ENABLED /etc/default/sysstat | sed "s/^/    /"
+        else
+            echo "    no /etc/default/sysstat"
+        fi
+        # on Debian trixie, sysstat uses a different path
+        ls /etc/cron.d/sysstat* 2>/dev/null | sed "s/^/  found: /"
+    '
+    echo ""
+done