feat: port sessions 21-23 — Streams, Consumers, MQTT, WebSocket & OCSP
Session 21 (402 features, IDs 3195-3387, 584-792):
- JetStream/StreamTypes.cs: StreamInfo, ConsumerInfo, SequenceInfo,
JSPubAckResponse, WaitQueue, ClusterInfo, PeerInfo, message types,
ConsumerAction enum, CreateConsumerRequest, PriorityGroupState
- JetStream/NatsStream.cs: NatsStream class (stub methods, IDisposable)
- JetStream/NatsConsumer.cs: NatsConsumer class (stub methods, IDisposable)
- Updated JetStreamApiTypes.cs: removed duplicate StreamInfo/ConsumerInfo stubs
Session 22 (153 features, IDs 2252-2404):
- Mqtt/MqttConstants.cs: all MQTT protocol constants, packet types, flags
- Mqtt/MqttTypes.cs: MqttSession, MqttSubscription, MqttWill, MqttJsa,
MqttAccountSessionManager, MqttHandler and supporting types
- Mqtt/MqttHandler.cs: per-client MQTT state, MqttServerExtensions stubs
Session 23 (97 features, IDs 3506-3543, 2443-2501):
- WebSocket/WebSocketConstants.cs: WsOpCode enum, frame bits, close codes
- WebSocket/WebSocketTypes.cs: WsReadInfo, SrvWebsocket (replaces stub),
WebSocketHandler stubs
- Auth/Ocsp/OcspTypes.cs: OcspMode, OcspMonitor (replaces stub),
IOcspResponseCache (replaces stub), NoOpCache, LocalDirCache
All features (3503 complete, 0 not_started). Phase 6 now at 58.9%.
a58e8e2572