8faf5c1c79
Import a Z-Wave JS UI (zwavejs2mqtt) network over the MQTT gateway API, mirroring the existing Zigbee pipeline: - New Z-Wave Import modal + sidebar entry (broker, prefix, gateway name) - coordinator/router/end-device typing with mesh tree from node neighbors - import to Pending section or straight to canvas - Pending Devices gains a Z-Wave source filter - shared mqtt_common helpers extracted from the zigbee service ha-relevant: yes