fix(evidence): enforce active vector generations

harness/tht/cli/search_cmd.py

@@ -48,6 +48,9 @@ def search_cmd(
 
     cfg = _load_config_or_exit(config)
     require_vector_cfg(cfg)
+    from tht.search.evidence import active_searcher
+
+    runtime_searcher = active_searcher(cfg, open_searcher(cfg))
     if kind is not None and kind not in KIND_MAP:
         typer.secho(
             f"ERRORE: --kind sconosciuto: {kind} (validi: {', '.join(KIND_MAP)})",
@@ -112,7 +115,7 @@ def search_cmd(
 
         candidates = combined_search(
             keyword=keyword, lsh_hits=lsh_hits,
-            store=open_searcher(cfg), embedder=make_embedder(cfg.embeddings),
+            store=runtime_searcher, embedder=make_embedder(cfg.embeddings),
             top=cfg.search.schema_chunk_pool, rrf_k=cfg.search.rrf_k,
             kinds=KIND_MAP["schema"],
         )
@@ -156,7 +159,7 @@ def search_cmd(
         kinds = KIND_MAP.get(kind) if kind else None
         results = combined_search(
             keyword=keyword, lsh_hits=lsh_hits if kind != "evidence" else None,
-            store=open_searcher(cfg), embedder=make_embedder(cfg.embeddings),
+            store=runtime_searcher, embedder=make_embedder(cfg.embeddings),
             top=top, rrf_k=cfg.search.rrf_k, kinds=kinds,
         )
 
@@ -249,7 +252,9 @@ def pack_cmd(
     vec = None
     searcher = embedder = None
     try:
-        searcher = open_searcher(cfg)
+        from tht.search.evidence import active_searcher
+
+        searcher = active_searcher(cfg, open_searcher(cfg))
         embedder = make_embedder(cfg.embeddings)
         vec = embedder.embed_query(question)
     except degrade as e: