Reference designators empty on custom inline footprints

[dwiel]

Summary

Components using a custom inline {...} prop export to .kicad_pcb with an empty
Reference property. The TSX name attribute is not propagated to (property "Reference" ...). Built-in string
footprints (footprint="soic8") export correctly — the issue is specific to custom inline footprints, which is
the pattern most LCSC imports use.

Minimal repro

// imports/AP2112K_3_3TRG1.tsx
export const AP2112K_3_3TRG1 = (props: { name: string, pcbX: number, pcbY: number }) => (
  <chip name={props.name} pcbX={props.pcbX} pcbY={props.pcbY}
    footprint={
      <footprint>
        <smtpad pcbX={-0.95} pcbY={-1.30} portHints={["1"]} /* ... */ />
        {/* more pads */}
      </footprint>
    }
    supplierPartNumbers={{ jlcpcb: ["C51118"] }} />
)

// test.tsx
import { AP2112K_3_3TRG1 } from "./imports/AP2112K_3_3TRG1"
export default () => (
  <board width="50mm" height="50mm">
    <AP2112K_3_3TRG1 name="U_TEST" pcbX={0} pcbY={0} />
  </board>
)

npx tsci export test.tsx -f kicad_pcb -o test.kicad_pcb
grep -A1 'property "Reference"' test.kicad_pcb

Expected

(property "Reference" "U_TEST" ...)

Actual

(property "Reference" "" ...)

Notes

• Pad positions, nets, and UUIDs are emitted correctly — only the Reference field is blank.
• The component name is available in the circuit-json (pad net names embed it, e.g. ".Rfb1 > .pin2 to .U1 >
  .INA_N"), so the name is flowing into circuit-json; it just doesn't reach the Reference property during KiCad
  emission.
• Downstream impact: silkscreen labels blank, assembly BOM↔placement matching broken, DRC messages can't
  identify components.
• Versions observed: tscircuit 0.0.1637, @tscircuit/core 0.0.1167, circuit-json-to-kicad 0.0.103