Refactor code structure for improved readability and maintainability

memory_gateway/obsidian_review_client.py

@@ -0,0 +1,25 @@
+"""Human-review backend skeleton for Memory Gateway v2.
+
+Obsidian remains a human-in-the-loop review backend only. This skeleton does
+not write files or call external APIs; it preserves the adapter contract until
+the review draft integration is explicitly designed.
+"""
+from __future__ import annotations
+
+from typing import Any
+
+from .backend_contracts import BackendOperation, BackendResultStatus, BackendWriteResult
+from .schemas_v2 import BackendType
+
+
+class ObsidianReviewClient:
+    def create_review_draft_v2(self, payload: dict[str, Any]) -> BackendWriteResult:
+        """Return a skipped review-draft result until the real adapter exists."""
+        return BackendWriteResult(
+            backend_type=BackendType.OBSIDIAN,
+            operation=BackendOperation.CREATE_REVIEW_DRAFT,
+            status=BackendResultStatus.SKIPPED,
+            native_id=payload.get("event_id") or payload.get("gateway_id"),
+            retryable=False,
+            metadata={"reason": "obsidian_review_adapter_not_configured"},
+        )