fix features CI and wasi CI

replace brittle test with a loom test

format feature list

fix a bug in counter increment 💀

fix a bug storing an old counter value

add loom test to check poll consistency

fix a typo

add loom test for polling between batches

add polling consistency between batches

remove magic constant

add test variant with different poll order

test atomicity when used with notify_one

take atomically entire list in `notify_waiters`

fix clippy errors with potential ub

decouple the list only if with multiple batches

add test for linked list iter

apply review suggestions