pubsub: bump consensus, Corona→Corona field, fix raft
- Bump github.com/luxfi/consensus v1.22.84 → v1.25.17 (go mod tidy clean).
- Migrate internal/consensus to current quasar API: QuasarHybridConsensus→Quasar,
HybridSignature→QuasarSig, NewQuasarHybridConsensus→NewQuasar,
VerifyHybridSignature→VerifyQuasarSig. Signature field is .Corona (no Corona).
Route threshold<2 (single-node/dev) to NewTestQuasar, >=2 to NewQuasar (BFT),
matching upstream's two-constructor production-vs-test split.
- Repair botched upstream merge in server/: restore corrupted files from the
upstream merge parent with Hanzo import paths preserved. Fixes RaftNodeCheckpoint
redeclaration, undefined gsl/standalone/numLimitableConsumers, dropped consumer
ack-format fields, resetStartingSeq arity, filestore IntersectGSL bool callbacks
and fetchMsgNoCopyLocked, jetstream_cluster creatingRaftGroups/wca.State.
go build ./... green; internal tests pass.