v11.1.1

fix: offline writes refuse signed-out — never enqueue under a null owner

A ticket parked on-device while the SDK session was dead was enqueued
with userId null. Every per-user surface then did its job correctly —
pendingWrites() throws signed-out, reads and replay filter by owner — so
the null-owner row matched nothing, forever: physically present,
invisible, unreplayable. The write neither failed nor succeeded; it
vanished into a bucket nobody owns.

All three offline enqueue sites (insert fallback, queued update, queued
delete) now throw KoolbaseUnauthenticatedException signed-out. Signed-in
behavior byte-for-byte unchanged. Mutation-pinned: removing the insert
guard fails 'writes to NO bucket'. Mirrors the RN SDK's Aug 4 fix of the
same bug family. v11.1.1