The /cluster/devices/blackmagic endpoint returns one entry per port (flat
array). The old SDI picker iterated over each entry and synthesised
port_count buttons per entry — 4 entries × 4 synthesised ports = 16 buttons
rendered as 4 identical duplicate groups.
Fix: extract DevicePortPicker component that groups the flat per-port
response by node_id (Map keyed on node_id, one group per physical node,
ports sorted by index). One button rendered per actual API entry.
Also extract ManualDevicePicker for the fallback empty-state dropdowns.
Both components shared between SDI and Deltacast pickers.
Visual improvements:
- Port label shows device node (io0, io1…) from device path instead of
redundant index number
- Node header only shows model+hostname, not repeated per port
- TEST CARD badge styled inline for Deltacast test-card ports
ZGaetano
f54c49d2dc