refactor: remove pgvector runtime

harness/tht/adapters/factory.py

@@ -3,12 +3,10 @@
 from tht.adapters.dwh import PostgresDwhAdapter, ThothRestDwhAdapter
 from tht.adapters.evidence import FilesystemEvidenceSource, HttpManifestEvidenceSource
 from tht.adapters.evidence.s3 import S3EvidenceSource
-from tht.adapters.vector import PgVectorStore, QdrantVectorStore, ThothHttpVectorStore
+from tht.adapters.vector import QdrantVectorStore
 from tht.config import Config, ConfigError
-from tht.db.connection import make_engine
 from tht.ports.dwh import DwhAdapter
 from tht.ports.vector import VectorStore
-from tht.vectorstore.rest_client import VectorRestClient
 
 
 def build_dwh(cfg: Config) -> DwhAdapter:
@@ -33,29 +31,6 @@ def build_vector_store(cfg: Config, *, require_write: bool = False) -> VectorSto
         raise ConfigError("Risorsa vectors non configurata")
 
     match resource.type:
-        case "pgvector_direct":
-            reader = resource.reader or resource.connection
-            # Legacy server workspaces use one RW `vector_db` connection. Keep
-            # that deployment contract without turning a workstation's legacy
-            # compatibility connection into an implicit writer.
-            writer = resource.writer or (
-                resource.connection if cfg.profile == "server" else None
-            )
-            if require_write and writer is None:
-                raise ConfigError("Vector writer non configurato per pgvector_direct")
-            return PgVectorStore(
-                reader,
-                writer,
-                expected_dimension=cfg.embeddings.dim if cfg.embeddings is not None else None,
-            )
-        case "thoth_vector_http":
-            if require_write and resource.writer is None:
-                raise ConfigError("Vector writer non configurato")
-            return ThothHttpVectorStore(
-                VectorRestClient(resource.reader) if resource.reader is not None else None,
-                VectorRestClient(resource.writer) if resource.writer is not None else None,
-                expected_dimension=cfg.embeddings.dim if cfg.embeddings is not None else None,
-            )
         case "qdrant":
             return QdrantVectorStore(
                 base_url=resource.base_url,
@@ -68,40 +43,6 @@ def build_vector_store(cfg: Config, *, require_write: bool = False) -> VectorSto
             raise ConfigError(f"Adapter vector non supportato: {other}")
 
 
-def build_vector_loader(cfg: Config, collection: str):
-    """Compatibility construction for legacy collection sync commands."""
-    resource = cfg.vectors
-    if resource is None:
-        raise ConfigError("Risorsa vectors non configurata")
-    if cfg.embeddings is None:
-        raise ConfigError("Embeddings non configurati")
-
-    if (
-        resource.type == "thoth_vector_http"
-        and resource.writer is not None
-        and (cfg.profile == "workstation" or resource.direct is None)
-    ):
-        from tht.vectorstore.rest_writer import RestVectorWriter
-
-        return RestVectorWriter(VectorRestClient(resource.writer), table=collection)
-
-    connection = (
-        resource.writer or resource.connection
-        if resource.type == "pgvector_direct"
-        else resource.direct
-    )
-    if connection is None:
-        raise ConfigError("Vector writer non configurato")
-    from tht.vectorstore.store import VectorStore as TableVectorStore
-
-    return TableVectorStore(
-        make_engine(connection),
-        schema=connection.db_schema,
-        table=collection,
-        dim=cfg.embeddings.dim,
-    )
-
-
 def build_evidence_sources(cfg: Config):
     """Build configured Evidence sources, including the legacy curated filesystem tree."""
     evidence = cfg.evidence
@@ -152,4 +93,4 @@ def build_evidence_sources(cfg: Config):
     return sources
 
 
-__all__ = ["build_dwh", "build_evidence_sources", "build_vector_loader", "build_vector_store"]
+__all__ = ["build_dwh", "build_evidence_sources", "build_vector_store"]