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>

server/routes/machines.ts

@@ -79,7 +79,7 @@ machinesRoutes.get("/:id/hardware", (c) => {
 machinesRoutes.post("/:id/probe", async (c) => {
   try {
     const o = await runProbe(c.req.param("id"));
-    return c.json({ probe: o.probe, proposal: o.proposal, changes: o.changes });
+    return c.json({ probe: o.probe, proposal: o.proposal, recommendations: o.recommendations, changes: o.changes });
   } catch (err) {
     return c.json({ error: (err as Error).message }, 400);
   }