Handles the EVENT_NODE_PARAMS_CHANGED event.
Merges shadow-style param updates into the node. Top-level keys are device or service names;
each maps to { paramName: value, ... }. Emits deviceParamChanged / serviceParamChanged
per param so _raw stays in sync (see adaptor property-change handlers).
Handles the
EVENT_NODE_PARAMS_CHANGEDevent. Merges shadow-style param updates into the node. Top-level keys are device or service names; each maps to{ paramName: value, ... }. EmitsdeviceParamChanged/serviceParamChangedper param so_rawstays in sync (see adaptor property-change handlers).