refactor(cli): remove obsolete workflow commands

harness/tht/lshindex/__init__.py

@@ -58,7 +58,7 @@ def load_index(directory: Path, name: str) -> tuple[Any, Any, dict]:
     if not (lsh_path.exists() and mh_path.exists() and meta_path.exists()):
         raise LshIndexError(
             f"Indice LSH non trovato in {directory} (atteso {name}_lsh.pkl). "
-            f"Esegui prima `tht lsh build`."
+            f"Esegui prima `tht preprocess dwh --steps lsh`."
         )
     lsh = pickle.loads(lsh_path.read_bytes())
     minhashes = pickle.loads(mh_path.read_bytes())
@@ -79,7 +79,7 @@ def query_index(lsh, minhashes, keyword: str, meta: dict, top_n: int = 10) -> li
         if entry is None:
             raise LshIndexError(
                 "Indice LSH disallineato (lsh.pkl e minhashes.pkl non coerenti): "
-                "rigenera con `tht lsh build`."
+                "rigenera con `tht preprocess dwh --steps lsh`."
             )
         scored.append((key, qmh.jaccard(entry[0])))
     scored.sort(key=lambda kv: kv[1], reverse=True)