Potential experiments

fix(gateway): sweep stale shared ip and user rate buckets (#2290)

fix(gateway): sweep stale shared ip and user rate buckets

chore: dart format

Merge remote-tracking branch 'origin/canary' into canary

fix(voice): finish the reconciliation sweep before stopping (#2289)

fix(worker): renew the deletion queue lock during a rebuild (#2287)

fix(worker): count each channel once in a bulk reindex (#2286)

Merge remote-tracking branch 'origin/canary' into canary

fix(ci): firebase test file location

Merge remote-tracking branch 'origin/canary' into canary

chore(expressions): remove the pack residue cleanup tool (#2288)

fix(worker): keep attachment decay state on a stale expiry row (#2285)

fix(voice): finish the reconciliation sweep before stopping

fix(gateway): release the user session count on a handoff fence (#2284)

fix(gateway): clamp a heartbeat ack to the session sequence (#2283)

fix(worker): resubscribe when the job stream ends unexpectedly (#2282)

fix(worker): renew the deletion queue lock during a rebuild

fix(gateway): group debounced reactions by their own message (#2281)

chore(expressions): remove the pack residue cleanup tool

fix(gateway): clear the presence pid cache on a presence down (#2279)