fix: scope workspace registry smoke cleanup

harness/tht/vectorstore/store.py

@@ -52,11 +52,13 @@ def hit_from_metadata(similarity: float, metadata: dict | None) -> VectorHit:
 
 
 class VectorStore:
-    """Tabella pgvector table-scoped: scrittura diretta (loading) su una tabella dello schema
-    `vectors`. La lettura via REST avviene su `search_similar`; questo store serve al loading e
-    alla lettura diretta (dev/test). Il contratto della tabella remota richiede `id` (BIGSERIAL),
-    `embedding vector(N)` e `metadata jsonb`; le colonne extra (`record_key`, `kind`,
-    `content_hash`) servono solo al loader e non sono esposte dalla REST."""
+    """Legacy table-scoped vector store retained for compatibility fixtures.
+
+    New operational semantic storage is handled by the Qdrant adapter. This class preserves
+    the older SQL-table contract used by historical tests and migration checks: `id`
+    (BIGSERIAL), `embedding vector(N)`, and `metadata jsonb`; the extra columns
+    (`record_key`, `kind`, `content_hash`) serve only the loader and are not exposed by REST.
+    """
 
     def __init__(
         self, engine: Engine, schema: str = "vectors", table: str = "records", dim: int = 768