Function destroyPairChain

destroyPairChain(
    contacts: Contacts,
    pairs: Pairs,
    rec: number,
    listener: Listener | undefined,
    queueEvents: boolean,
): void
Destroy every contact in a pair record's chain.

When queueEvents is true the removal payloads are pushed onto pendingContactRemoved instead of fired (the body-removal path, where the listener is unavailable — same pattern as the deferred body-removal events). The whole chain is freed and the record's head reset to empty.
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 destroyed
- listener: Listener | undefined
  optional contact listener to notify of removal (ignored when queueEvents)
- queueEvents: boolean
  queue removal events onto pendingContactRemoved instead of firing them
Returns void
- Defined in src/contacts.ts:388