refactor: server 包重构及性能优化

1、由于设计不合理，移除 server
包中跨服相关的内容；
2、重构消息处理机制和消息分流机制并优化性能；
3、分流消息支持数据包、定时任务、异步回调的分流；
4、长连接支持获取定时器。

go.mod

@@ -11,17 +11,17 @@ require (
 	github.com/gorilla/websocket v1.5.0
 	github.com/json-iterator/go v1.1.12
 	github.com/lestrrat-go/file-rotatelogs v2.4.0+incompatible
-	github.com/nats-io/nats.go v1.31.0
 	github.com/panjf2000/ants/v2 v2.8.1
 	github.com/panjf2000/gnet v1.6.7
 	github.com/smartystreets/goconvey v1.8.1
 	github.com/sony/sonyflake v1.2.0
+	github.com/spf13/cobra v1.7.0
 	github.com/tealeg/xlsx v1.0.5
 	github.com/tidwall/gjson v1.16.0
 	github.com/xtaci/kcp-go/v5 v5.6.3
 	go.uber.org/atomic v1.10.0
 	go.uber.org/zap v1.25.0
-	golang.org/x/time v0.4.0
+	golang.org/x/crypto v0.14.0
 	google.golang.org/grpc v1.59.0
 )
 
@@ -39,24 +39,17 @@ require (
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jonboulle/clockwork v0.3.0 // indirect
 	github.com/jtolds/gls v4.20.0+incompatible // indirect
-	github.com/klauspost/compress v1.17.2 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
 	github.com/klauspost/reedsolomon v1.11.8 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
 	github.com/leodido/go-urn v1.2.4 // indirect
 	github.com/lestrrat-go/strftime v1.0.6 // indirect
 	github.com/mattn/go-isatty v0.0.19 // indirect
-	github.com/minio/highwayhash v1.0.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/nats-io/jwt/v2 v2.5.3 // indirect
-	github.com/nats-io/nats-server/v2 v2.10.4 // indirect
-	github.com/nats-io/nkeys v0.4.6 // indirect
-	github.com/nats-io/nuid v1.0.1 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.8 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/smarty/assertions v1.15.0 // indirect
-	github.com/spf13/cobra v1.7.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/templexxx/cpu v0.1.0 // indirect
 	github.com/templexxx/xorsimd v0.4.2 // indirect
@@ -66,10 +59,8 @@ require (
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.11 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
-	go.uber.org/automaxprocs v1.5.3 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/arch v0.3.0 // indirect
-	golang.org/x/crypto v0.14.0 // indirect
 	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
 	golang.org/x/net v0.17.0 // indirect
 	golang.org/x/sys v0.14.0 // indirect