Task 9 resolved (removed stale docs). Provider key 'attack-on-titan' replaced with 'test-unknown-anime-2020'.
Add test anime folders for unresolved folder API tests. Update test data from 'SomeFolder' to 'Unknown Anime (2020)'. Remove stale Task 16 notes from Docs/tasks.md. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>