feat(probe): sonde enrichie CPU/RAM/disques + recommandations de profils (tâche 4)

- template machine-probe : lscpu Model name + nproc, MemTotal, lsblk disques
- parseProbe étendu (cpuModel/cpuCores/memoryBytes/disks) + buildRecommendations
  (KVM/QEMU → vm_guest_tools) ; tests TDD
- runProbe persiste cpu/mem/disks dans machine_hardware ; /probe renvoie recommendations
- popup Sonde affiche cpu/ram/disks + profils conseillés

tsc 0 · 110 tests · build OK.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

client/src/features/machines/MachineTile.tsx

@@ -296,10 +296,24 @@ function MachineConfigPopup({
                 {probe.probe.isProxmox ? " · proxmox" : ""}
                 {probe.probe.isRpi ? " · rpi" : ""}
               </div>
+              {(probe.probe.cpuModel || probe.probe.memoryBytes) && (
+                <div className="mono cfg-facts">
+                  cpu={probe.probe.cpuModel ?? "?"} ({probe.probe.cpuCores ?? "?"}c) · ram=
+                  {probe.probe.memoryBytes ? `${(probe.probe.memoryBytes / 1e9).toFixed(1)} Go` : "?"} · disks=
+                  {probe.probe.disks.length}
+                </div>
+              )}
               <div className="cfg-proposal mono">
                 proposition : os_family={probe.proposal.osFamily} · machine_kind={probe.proposal.machineKind} · virt=
                 {probe.proposal.virtualization}
               </div>
+              {probe.recommendations.length > 0 && (
+                <ul className="cfg-changes">
+                  {probe.recommendations.map((r, i) => (
+                    <li key={i} className="mono">↪ profil conseillé : {r.profileId} — {r.reason}</li>
+                  ))}
+                </ul>
+              )}
               {probe.changes.length ? (
                 <>
                   <ul className="cfg-changes">