fix: 改进代码

src/heurams/kernel/repolib/__init__.py

@@ -1 +1,3 @@
-from .repo import *
+from .repo import Repo, RepoManifest
+
+__all__ = ["Repo", "RepoManifest"]

src/heurams/kernel/repolib/aux.py

@@ -1,5 +0,0 @@
-from ...utils.lict import Lict
-
-
-def merge(x: Lict, y: Lict):
-    return Lict(list(x.values()) + list(y.values()))