Implements ProcessImplicitRoute and ForwardNewRouteInfoToKnownServers on RouteManager,
and ProcessImplicitGateway on GatewayManager, mirroring Go server/route.go and
server/gateway.go INFO gossip-based peer discovery. Adds ConnectUrls to ServerInfo
and introduces GatewayInfo model. 12 new unit tests in ImplicitDiscoveryTests.
Add FrameworkReference to Microsoft.AspNetCore.App to enable Kestrel
Minimal APIs for the monitoring HTTP server. Remove the now-redundant
Microsoft.Extensions.Logging.Abstractions PackageReference (it is
included transitively via the framework reference).
Add monitoring config properties (MonitorPort, MonitorHost,
MonitorBasePath, MonitorHttpsPort) and TLS config properties (TlsCert,
TlsKey, TlsCaCert, TlsVerify, TlsHandshakeFirst, etc.) to NatsOptions.
Add TlsRequired, TlsVerify, and TlsAvailable fields to ServerInfo so
the server can advertise TLS capability in the INFO protocol message.
Move max payload validation from the parser to ProcessPubAsync so the
server sends -ERR 'Maximum Payload Violation' and closes the connection
(matching Go reference client.go:2442). In pedantic mode, reject PUB
with wildcard subjects via -ERR 'Invalid Publish Subject' (client.go:2869).
Add disposed guard to SubList.Remove to prevent crash during shutdown.
Add NatsParser that reads NATS protocol commands from
ReadOnlySequence<byte>. Identifies commands by first 2 bytes using
case-insensitive bit masking. Handles PUB/HPUB payload reading with
stateful _awaitingPayload for split-packet scenarios. Uses Span<Range>
for zero-allocation argument splitting and ParseSize for ASCII decimal
parsing. Includes CommandType enum, ParsedCommand struct, and
ProtocolViolationException.
14 tests covering PING, PONG, CONNECT, INFO, SUB (with/without queue),
UNSUB (with/without max), PUB (with/without reply, zero payload),
HPUB, multiple commands, and case insensitivity.
