sync update from LAN repo (source dhk-1 @ 3b1ec5b4)

offline-backend-20260512/backend/tests/test_llmwiki_encoder_runtime.py

@@ -274,10 +274,10 @@ async def test_local_path_save_and_restore_persist_mode_and_rebuild(
     assert rebuilds == [True, True]
 
 
-def test_both_shipped_offline_configs_enable_incremental_wiki_rescan() -> None:
+def test_both_shipped_offline_configs_keep_wiki_rescan_manual_by_default() -> None:
     offline_root = Path(__file__).resolve().parents[2]
     for path in (offline_root / "config.yaml", offline_root / "backend" / "config.yaml"):
         payload = yaml.safe_load(path.read_text(encoding="utf-8"))
         local_index = payload["llmwiki"]["local_wiki_index"]
         assert local_index["enabled"] is True
-        assert local_index["auto_sync"] is True
+        assert local_index["auto_sync"] is False