v0.58.0: report GuestPath/BoundUnderParent for a registry-sourced /disks row

The Impl-2a registry union row omitted GuestPath + BoundUnderParent, so the
controller read a registry-only (raw) drive as "Leválasztva" despite being mounted
+ bound live. Populate them like the Observe path (StablePathForRaw +
boundUnderParent). Last piece of first-class raw-drive support.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

internal/localapi/disks.go

@@ -223,12 +223,19 @@ func (s *Server) handleDisks(w http.ResponseWriter, r *http.Request, vmid int) {
 				if d.MountPath == "" || seen[d.MountPath] {
 					continue
 				}
-				out = append(out, DiskInfo{
+				di := DiskInfo{
 					Name: d.Name, Type: d.Type, State: "attached",
 					MountPath: d.MountPath, DurableID: d.DurableID,
 					Role:          string(storage.RoleUserData),
 					GuestAttached: boundPaths[d.MountPath],
-				})
+				}
+				// Intermediary model: report the stable in-guest path + whether felhom-data is bound live,
+				// exactly like the Observe path — else the controller reads a registry drive as "Leválasztva".
+				if gp := StablePathForRaw(d.MountPath); gp != "" {
+					di.GuestPath = gp
+					di.BoundUnderParent = s.boundUnderParent(r.Context(), vmid, gp)
+				}
+				out = append(out, di)
 			}
 		} else {
 			s.logger.Warn("disks: registry drive union skipped", "err", derr)