GHSA-pjvx-rx66-r3fg: OpenClaw: Cross-account sender authorization expansion in `/allowlist ... --store` account scoping

/allowlist ... --store resolved the selected channel accountId for reads, but store writes still dropped that accountId and wrote into the legacy unscoped pairing allowlist store.

Because default-account reads still merge legacy unscoped entries, a store entry intended for one account could silently authorize the same sender on the default account.

This is a real cross-account sender-authorization scoping bug. Severity is set to medium because exploitation requires an already-authorized user who can run /allowlist edits.