Use bit array for storing flips in active spsa tasks

chore: bump package versions

chore: fix sort with isort

refactor: use modern python for delta_update_users

fix(server): exception in delta_update_users.py

Greatly reduce the amount of spsa data stored in active tasks.

fix(worker): setup fastchess in robust way

Add document size to tests page.

Decouple the core spsa update logic from the reporting

refactor(server): util.py

ci: add permission suggested by CodeQL

Make the new spsa code robust against a server crash

Verification that the checksum of the file on the filesystem and the …

refactor(worker): little standardization

Make sure to buffer the run after request_spsa.

Fix schema error introduced in #2239

Simplify handling of SPSA.

chore: update authors

feat(worker): NPS bench SMP aware

Create a "warning" queue for flash messages.

feat(server): download pgns sorted for task_id

Cleanup: retire cached_flash.

Do not use raw references to run objects in wtt_map.

Require reapproval for reviving a failed run.

fix darkmode switch

Revert "Do not revive a failed run."

Revert "Do not revive a failed run."

chore(server): drop unused png files

use webp images