Function destroyStaleContactsInPair

destroyStaleContactsInPair(
    contacts: Contacts,
    pairs: Pairs,
    rec: number,
    listener: Listener | undefined,
): void
Destroy stale contacts (lastProcessedFrame !== frameStamp) in a pair record's chain.

After narrowphase processes an emitted pair, any chain contacts not re-stamped this frame are stale (sub-shapes no longer colliding) and are destroyed. The chain IS the pair, so no body-id filtering is needed.
Parameters
- contacts: Contacts
  global contact state
- pairs: Pairs
  persistent pair state (holds the per-record chain heads)
- rec: number
  pair record index whose chain should be reconciled
- listener: Listener | undefined
  optional contact listener to notify of removal
Returns void
- Defined in src/contacts.ts:431