Initiate ring computation for a community at a given ceremony index.
Computes all 5 reputation rings (N/5 for N=1..5) via multi-block process.
Only allowed during Assigning phase, when the previous ceremony's
reputation records are finalized. During Registering phase, current_ceremony_index
has already advanced but the previous ceremony hasn't completed yet.
Initiate ring computation for a community at a given ceremony index. Computes all 5 reputation rings (N/5 for N=1..5) via multi-block process.
Only allowed during Assigning phase, when the previous ceremony's reputation records are finalized. During Registering phase,
current_ceremony_indexhas already advanced but the previous ceremony hasn't completed yet.