- guest_overwrites_payload_after_send_outbox_has_copy: outbox snapshots memory at send time
- alloc_grows_memory_returns_pointer_in_new_page: memory.grow per alloc, 5 messages through
- trap_after_successful_send_clears_outbox: trap discards all outbox entries including valid ones
- send_payload_at_memory_offset_zero: offset 0 is a valid payload location
All 143 tests pass. No new bugs found.
Authored by Claude, lovingly guided by Zachery Aaron Shores-Chmielewski