fix(memory): import ModuleConfig from concrete module to fix mypy error

Import Module and ModuleConfig from dimos.core.module instead of the
lazy-loaded dimos.core namespace, which mypy sees as type Any.

Author: leshy

dimos/memory/embedding.py

@@ -20,7 +20,8 @@
 from reactivex import operators as ops
 from reactivex.observable import Observable
 
-from dimos.core import In, Module, ModuleConfig, rpc
+from dimos.core import In, rpc
+from dimos.core.module import Module, ModuleConfig
 from dimos.models.embedding.base import Embedding, EmbeddingModel
 from dimos.models.embedding.clip import CLIPModel
 from dimos.msgs.geometry_msgs import PoseStamped