Unify directory trees and preload snapshots

internal/restic/restic.go

@@ -270,14 +270,12 @@ func (r *Runner) List(ctx context.Context, repo model.Repository, snapshot, path
 	}
 	items := []map[string]any{}
 	scanner := bufio.NewScanner(strings.NewReader(string(output)))
+	scanner.Buffer(make([]byte, 0, 64*1024), 2*1024*1024)
 	for scanner.Scan() {
 		var item map[string]any
 		if json.Unmarshal(scanner.Bytes(), &item) == nil && item["struct_type"] == "node" {
 			items = append(items, item)
 		}
-		if len(items) >= 5000 {
-			break
-		}
 	}
 	return items, scanner.Err()
 }