feat(etl-cache): expose storage layer

surfsense_backend/app/etl_pipeline/cache/storage/__init__.py

@@ -0,0 +1,9 @@
+"""Blob storage for cached parse markdown."""
+
+from __future__ import annotations
+
+from .markdown_store import MarkdownCacheStore
+
+__all__ = [
+    "MarkdownCacheStore",
+]