Single-device approve now guards duplicates per-design the same way bulk
approve does, and asks the user instead of failing or silently merging:
- create_node and approve_device reject a same-design duplicate (ieee, ip
or mac) with 409 + the existing node; a force flag creates it anyway.
- Frontend shows a confirm dialog: go to existing node, add duplicate
anyway, or cancel.
- approve_device no longer rejects a device already on another canvas
(status is global, canvas membership is per-design) — it can be placed
on a new design, matching bulk approve.
- IEEE (Zigbee/Z-Wave) devices now use the same prompt as ip/mac instead
of auto-merging into the existing node.
- bulk approve reports which devices it skipped as duplicates.
Closes#260
ha-relevant: maybe
Pouzor
0792105b96