service backend

api/ledger/internal/model/util.go

@@ -0,0 +1,10 @@
+package ledger
+
+// dstSlice returns dst[:n] if capacity is enough, otherwise a new slice with capHint capacity.
+// Avoids fmt/errors; tiny helper for in-place reuse when recomputing CurrentOwners.
+func dstSlice[T any](dst []T, n, capHint int) []T {
+	if cap(dst) >= capHint {
+		return dst[:n]
+	}
+	return make([]T, n, capHint)
+}