Incorrect accidental contact warning

[seveibar]

Here's a repro:

export default () => (
  <board width="10mm" height="10mm">
    <testpoint
      name="TP1"
      pcbX={-2}
      footprintVariant="pad"
    />
    <testpoint
      name="TP2"
      pcbX={2}
      footprintVariant="pad"
    />
    <testpoint
      name="TP3"
      pcbY={2}
      pcbX={2}
      footprintVariant="pad"
    />
    <trace from="TP1.pin1" to="TP2.pin1" />
    <trace from="TP2.pin1" to="TP3.pin1" />
  </board>
)

[seveibar]

@0hmX i suspect this is a new autorouter bug due to the release of the second pipeline

this was my prompt to codex to attempt a fix...

The autorouter shouldn't be returning any "_mst" source trace ids in it's final output- but it seems to be, these are supposed to be converted to the root connection name, the code for it was already written but must have broken at some point or something. Please fix! You'll want to look at the autorouter pipelines, particularly version 2 of the assignable pipeline and the regular pipeline