v0.15.1: Backup page Részletek overhaul with per-drive tier sections

Replace Tároló section with collapsible Részletek containing 3 tiers:
- Tier 1: per-drive restic repo stats with storage labels
- Tier 2: cross-drive items grouped by destination, split by method
- Tier 3: remote backup placeholder
Restore UI now shows tier + drive labels in snapshot dropdown.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

controller/internal/web/handlers.go

@@ -525,33 +525,59 @@ func (s *Server) backupsHandler(w http.ResponseWriter, r *http.Request) {
 			data["ResticPassword"] = pw
 		}
 
-		// Tároló section: DB dump total size
+		// Részletek section: DB dump total size
 		var dbDumpTotalBytes int64
 		for _, f := range fullStatus.DumpFiles {
 			dbDumpTotalBytes += f.Size
 		}
 		data["DBDumpTotalBytes"] = dbDumpTotalBytes
 
-		// Tároló section: deduplicated Tier 2 destination list
-		tier2DestMap := make(map[string]map[string]string)
+		// Részletek section: enrich per-drive repo stats with storage labels
+		for i := range fullStatus.PerDriveRepoStats {
+			for _, sp := range storagePaths {
+				if strings.HasPrefix(fullStatus.PerDriveRepoStats[i].DrivePath, sp.Path) ||
+					fullStatus.PerDriveRepoStats[i].DrivePath == sp.Path {
+					fullStatus.PerDriveRepoStats[i].DriveLabel = sp.Label
+					break
+				}
+			}
+			if fullStatus.PerDriveRepoStats[i].DriveLabel == "" {
+				fullStatus.PerDriveRepoStats[i].DriveLabel = filepath.Base(fullStatus.PerDriveRepoStats[i].DrivePath)
+			}
+		}
+		data["PerDriveRepoStats"] = fullStatus.PerDriveRepoStats
+
+		// Részletek section: group Tier 2 items by destination drive
+		tier2GroupMap := make(map[string]*Tier2DriveGroup)
 		for _, item := range fullStatus.CrossDriveSummary {
 			if item.DestPath == "" {
 				continue
 			}
-			if _, exists := tier2DestMap[item.DestPath]; !exists {
-				tier2DestMap[item.DestPath] = map[string]string{
-					"Path":      item.DestPath,
-					"Label":     item.DestLabel,
-					"Method":    item.MethodLabel,
-					"SizeHuman": item.SizeHuman,
+			grp, exists := tier2GroupMap[item.DestPath]
+			if !exists {
+				grp = &Tier2DriveGroup{
+					DestPath:  item.DestPath,
+					DestLabel: item.DestLabel,
 				}
+				if grp.DestLabel == "" {
+					grp.DestLabel = filepath.Base(item.DestPath)
+				}
+				tier2GroupMap[item.DestPath] = grp
+			}
+			switch item.Method {
+			case "restic":
+				grp.ResticItems = append(grp.ResticItems, item)
+			case "rsync":
+				grp.RsyncItems = append(grp.RsyncItems, item)
+			default:
+				grp.RsyncItems = append(grp.RsyncItems, item)
 			}
 		}
-		var tier2DestList []map[string]string
-		for _, d := range tier2DestMap {
-			tier2DestList = append(tier2DestList, d)
+		var tier2Groups []Tier2DriveGroup
+		for _, grp := range tier2GroupMap {
+			tier2Groups = append(tier2Groups, *grp)
 		}
-		data["Tier2Dests"] = tier2DestList
+		data["Tier2DriveGroups"] = tier2Groups
 	} else {
 		data["Backup"] = nil
 	}
@@ -559,6 +585,14 @@ func (s *Server) backupsHandler(w http.ResponseWriter, r *http.Request) {
 	s.render(w, "backups", data)
 }
 
+// Tier2DriveGroup holds grouped Tier 2 cross-drive backup items for one destination drive.
+type Tier2DriveGroup struct {
+	DestPath    string
+	DestLabel   string
+	ResticItems []backup.CrossDriveSummaryItem
+	RsyncItems  []backup.CrossDriveSummaryItem
+}
+
 // AppBackupRow holds per-tier backup information for one app on the backup page.
 type AppBackupRow struct {
 	StackName   string