03efc9761a39  REGRESSION(315609@main): Stack overflow in NetworkProcess aborting the queued transactions of a suspended process

Classified as not security-relevant.
Triage note: Renames the suspended-client API, factors abortInProgressTransactionsBlockedOnSuspendedClients into handleTransactionsAfterAbortingSuspendedClientTransactions, and defers transactions of suspended clients. Internal IDB scheduling refactor/correctness with no attacker-reachable memory-safety or logic bug fixed.
This commit was flagged by the signal scorer and reviewed by AI (not a human). It is listed only so the triage is auditable; there is no root-cause analysis because this is not a vulnerability fix.

Structural signals: smartptr_member_added (+4.87), null_guard (+1.2), msg_medium (+2.0)