fix(core): preserve adapter command contracts

harness/tht/cli/memory_cmd.py

@@ -156,7 +156,6 @@ def save_one_cmd(
     from tht.adapters.factory import build_vector_store
     from tht.cli.vector_cmd import make_embedder
     from tht.memory import load_registry, promote, save_one_memory
-    from tht.vectorstore.rest_client import VectorRestClient
 
     cfg = _load_config_or_exit(config)
     manifest = load_session_or_exit(cfg, session)
@@ -168,7 +167,7 @@ def save_one_cmd(
             fg=typer.colors.RED, err=True,
         )
         raise typer.Exit(code=4)
-    build_vector_store(cfg, require_write=True)
+    store = build_vector_store(cfg, require_write=True)
 
     sdir = session_dir(cfg, session)
     # Promuove la decisione scelta nel registro locale (idempotente: salta se gia' presente
@@ -176,9 +175,8 @@ def save_one_cmd(
     promote(sdir, manifest, seqs=[decision], registry_path=registry_path(cfg))
     records = [r for r in load_registry(registry_path(cfg)) if r.session_id == manifest.id]
 
-    writer = VectorRestClient(cfg.vector_write_rest)
     embedder = make_embedder(cfg.embeddings)
-    count = save_one_memory(records, decision, writer=writer, embedder=embedder)
+    count = save_one_memory(records, decision, store=store, embedder=embedder)
 
     msg = (
         f"{count} memoria salvata su pgvector (decision_seq {decision})."
@@ -455,21 +453,20 @@ def index_solved_session(cfg, session_id: str) -> int:
     from tht.cli.sql_cmd import promoted_tables_for
     from tht.cli.vector_cmd import make_embedder
     from tht.solved import build_solved_record, save_solved_question
-    from tht.vectorstore.rest_client import VectorRestClient
 
     if not has_vector_write_rest(cfg):
         raise RuntimeError(
             "vector_write_rest assente: la coppia domanda->SQL si indicizza solo con la "
             "writer key configurata nel workspace yaml"
         )
-    build_vector_store(cfg, require_write=True)
+    store = build_vector_store(cfg, require_write=True)
     manifest = load_session_or_exit(cfg, session_id)
     record = build_solved_record(
         session_dir(cfg, session_id), manifest, promoted_tables_for(cfg, session_id)
     )
     return save_solved_question(
         record,
-        writer=VectorRestClient(cfg.vector_write_rest),
+        store=store,
         embedder=make_embedder(cfg.embeddings),
     )