refactor: remove pgvector runtime

harness/tht/adapters/vector/_shared.py

@@ -0,0 +1,41 @@
+"""Shared collection and kind validation for vector stores."""
+
+from __future__ import annotations
+
+from tht.ports.vector import VectorStoreError
+
+COLLECTION_KINDS = {
+    "schema_records": {"schema_table", "schema_column"},
+    "evidence": {"evidence"},
+    "memory": {"memory", "solved_question"},
+}
+ALLOWED_COLLECTIONS = frozenset(COLLECTION_KINDS)
+ALLOWED_KINDS = frozenset().union(*COLLECTION_KINDS.values())
+
+
+def validate_collection(collection: str) -> str:
+    if collection not in ALLOWED_COLLECTIONS:
+        raise VectorStoreError(f"Collection not allowed: {collection}")
+    return collection
+
+
+def validate_collection_kinds(collection: str, kinds: list[str]) -> None:
+    invalid = set(kinds) - COLLECTION_KINDS[collection]
+    if invalid:
+        raise VectorStoreError(f"Kind not allowed for {collection}: {', '.join(sorted(invalid))}")
+
+
+def validate_known_kinds(kinds: list[str]) -> None:
+    invalid = set(kinds) - ALLOWED_KINDS
+    if invalid:
+        raise VectorStoreError(f"Kind not allowed: {', '.join(sorted(invalid))}")
+
+
+__all__ = [
+    "ALLOWED_COLLECTIONS",
+    "ALLOWED_KINDS",
+    "COLLECTION_KINDS",
+    "validate_collection",
+    "validate_collection_kinds",
+    "validate_known_kinds",
+]