feat: refactor to multi-protocol event streaming system

Major architectural refactor, upgrading from simple logging system to comprehensive multi-protocol Solana DEX event streaming system:

✨ New Features:
- Support for 5 DEX protocols: PumpFun, PumpSwap, Bonk, Raydium CPMM, Raydium CLMM
- Implement unified event interface (UnifiedEvent trait) and event factory pattern
- Add dual streaming support: Yellowstone gRPC and ShredStream
- Add Chinese documentation (README_CN.md)

🏗️ Architectural Improvements:
- Refactor event parsing system with modular design
- Implement protocol-specific parsers and event types
- Optimize dependency management, update Cargo.toml
- Remove legacy logging modules, clean up redundant code

📊 Statistics:
- Added 46 files, 4511 lines of code
- Removed 1381 lines of legacy code
- Net addition of 3130 lines of code

Tech Stack:
- Rust async/await for asynchronous processing
- Protocol Buffers support
- Multi-protocol event parsing
- High-performance event stream subscription

src/protos/mod.rs

@@ -0,0 +1,2 @@
+pub mod shared;
+pub mod shredstream;

src/protos/shared.rs

@@ -0,0 +1,18 @@
+// This file is @generated by prost-build.
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Header {
+    #[prost(message, optional, tag = "1")]
+    pub ts: ::core::option::Option<::prost_types::Timestamp>,
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct Heartbeat {
+    #[prost(uint64, tag = "1")]
+    pub count: u64,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Socket {
+    #[prost(string, tag = "1")]
+    pub ip: ::prost::alloc::string::String,
+    #[prost(int64, tag = "2")]
+    pub port: i64,
+}

src/protos/shredstream.rs

@@ -0,0 +1,279 @@
+// This file is @generated by prost-build.
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Heartbeat {
+    /// don't trust IP:PORT from tcp header since it can be tampered over the wire
+    /// `socket.ip` must match incoming packet's ip. this prevents spamming an unwitting destination
+    #[prost(message, optional, tag = "1")]
+    pub socket: ::core::option::Option<super::shared::Socket>,
+    /// regions for shredstream proxy to receive shreds from
+    /// list of valid regions: <https://docs.jito.wtf/lowlatencytxnsend/#api>
+    #[prost(string, repeated, tag = "2")]
+    pub regions: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+}
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct HeartbeatResponse {
+    /// client must respond within `ttl_ms` to keep stream alive
+    #[prost(uint32, tag = "1")]
+    pub ttl_ms: u32,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct TraceShred {
+    /// source region, one of: <https://docs.jito.wtf/lowlatencytxnsend/#api>
+    #[prost(string, tag = "1")]
+    pub region: ::prost::alloc::string::String,
+    /// timestamp of creation
+    #[prost(message, optional, tag = "2")]
+    pub created_at: ::core::option::Option<::prost_types::Timestamp>,
+    /// monotonically increases, resets upon service restart
+    #[prost(uint32, tag = "3")]
+    pub seq_num: u32,
+}
+/// tbd: we may want to add filters here
+#[derive(Clone, Copy, PartialEq, ::prost::Message)]
+pub struct SubscribeEntriesRequest {}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Entry {
+    /// the slot that the entry is from
+    #[prost(uint64, tag = "1")]
+    pub slot: u64,
+    /// Serialized bytes of Vec<Entry>: <https://docs.rs/solana-entry/latest/solana_entry/entry/struct.Entry.html>
+    #[prost(bytes = "vec", tag = "2")]
+    pub entries: ::prost::alloc::vec::Vec<u8>,
+}
+/// Generated client implementations.
+pub mod shredstream_client {
+    #![allow(
+        unused_variables,
+        dead_code,
+        missing_docs,
+        clippy::wildcard_imports,
+        clippy::let_unit_value,
+    )]
+    use tonic::codegen::*;
+    use tonic::codegen::http::Uri;
+    #[derive(Debug, Clone)]
+    pub struct ShredstreamClient<T> {
+        inner: tonic::client::Grpc<T>,
+    }
+    impl ShredstreamClient<tonic::transport::Channel> {
+        /// Attempt to create a new client by connecting to a given endpoint.
+        pub async fn connect<D>(dst: D) -> Result<Self, tonic::transport::Error>
+        where
+            D: TryInto<tonic::transport::Endpoint>,
+            D::Error: Into<StdError>,
+        {
+            let conn = tonic::transport::Endpoint::new(dst)?.connect().await?;
+            Ok(Self::new(conn))
+        }
+    }
+    impl<T> ShredstreamClient<T>
+    where
+        T: tonic::client::GrpcService<tonic::body::BoxBody>,
+        T::Error: Into<StdError>,
+        T::ResponseBody: Body<Data = Bytes> + std::marker::Send + 'static,
+        <T::ResponseBody as Body>::Error: Into<StdError> + std::marker::Send,
+    {
+        pub fn new(inner: T) -> Self {
+            let inner = tonic::client::Grpc::new(inner);
+            Self { inner }
+        }
+        pub fn with_origin(inner: T, origin: Uri) -> Self {
+            let inner = tonic::client::Grpc::with_origin(inner, origin);
+            Self { inner }
+        }
+        pub fn with_interceptor<F>(
+            inner: T,
+            interceptor: F,
+        ) -> ShredstreamClient<InterceptedService<T, F>>
+        where
+            F: tonic::service::Interceptor,
+            T::ResponseBody: Default,
+            T: tonic::codegen::Service<
+                http::Request<tonic::body::BoxBody>,
+                Response = http::Response<
+                    <T as tonic::client::GrpcService<tonic::body::BoxBody>>::ResponseBody,
+                >,
+            >,
+            <T as tonic::codegen::Service<
+                http::Request<tonic::body::BoxBody>,
+            >>::Error: Into<StdError> + std::marker::Send + std::marker::Sync,
+        {
+            ShredstreamClient::new(InterceptedService::new(inner, interceptor))
+        }
+        /// Compress requests with the given encoding.
+        ///
+        /// This requires the server to support it otherwise it might respond with an
+        /// error.
+        #[must_use]
+        pub fn send_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.inner = self.inner.send_compressed(encoding);
+            self
+        }
+        /// Enable decompressing responses.
+        #[must_use]
+        pub fn accept_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.inner = self.inner.accept_compressed(encoding);
+            self
+        }
+        /// Limits the maximum size of a decoded message.
+        ///
+        /// Default: `4MB`
+        #[must_use]
+        pub fn max_decoding_message_size(mut self, limit: usize) -> Self {
+            self.inner = self.inner.max_decoding_message_size(limit);
+            self
+        }
+        /// Limits the maximum size of an encoded message.
+        ///
+        /// Default: `usize::MAX`
+        #[must_use]
+        pub fn max_encoding_message_size(mut self, limit: usize) -> Self {
+            self.inner = self.inner.max_encoding_message_size(limit);
+            self
+        }
+        /// RPC endpoint to send heartbeats to keep shreds flowing
+        pub async fn send_heartbeat(
+            &mut self,
+            request: impl tonic::IntoRequest<super::Heartbeat>,
+        ) -> std::result::Result<
+            tonic::Response<super::HeartbeatResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/shredstream.Shredstream/SendHeartbeat",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(GrpcMethod::new("shredstream.Shredstream", "SendHeartbeat"));
+            self.inner.unary(req, path, codec).await
+        }
+    }
+}
+/// Generated client implementations.
+pub mod shredstream_proxy_client {
+    #![allow(
+        unused_variables,
+        dead_code,
+        missing_docs,
+        clippy::wildcard_imports,
+        clippy::let_unit_value,
+    )]
+    use tonic::codegen::*;
+    use tonic::codegen::http::Uri;
+    #[derive(Debug, Clone)]
+    pub struct ShredstreamProxyClient<T> {
+        inner: tonic::client::Grpc<T>,
+    }
+    impl ShredstreamProxyClient<tonic::transport::Channel> {
+        /// Attempt to create a new client by connecting to a given endpoint.
+        pub async fn connect<D>(dst: D) -> Result<Self, tonic::transport::Error>
+        where
+            D: TryInto<tonic::transport::Endpoint>,
+            D::Error: Into<StdError>,
+        {
+            let conn = tonic::transport::Endpoint::new(dst)?.connect().await?;
+            Ok(Self::new(conn))
+        }
+    }
+    impl<T> ShredstreamProxyClient<T>
+    where
+        T: tonic::client::GrpcService<tonic::body::BoxBody>,
+        T::Error: Into<StdError>,
+        T::ResponseBody: Body<Data = Bytes> + std::marker::Send + 'static,
+        <T::ResponseBody as Body>::Error: Into<StdError> + std::marker::Send,
+    {
+        pub fn new(inner: T) -> Self {
+            let inner = tonic::client::Grpc::new(inner);
+            Self { inner }
+        }
+        pub fn with_origin(inner: T, origin: Uri) -> Self {
+            let inner = tonic::client::Grpc::with_origin(inner, origin);
+            Self { inner }
+        }
+        pub fn with_interceptor<F>(
+            inner: T,
+            interceptor: F,
+        ) -> ShredstreamProxyClient<InterceptedService<T, F>>
+        where
+            F: tonic::service::Interceptor,
+            T::ResponseBody: Default,
+            T: tonic::codegen::Service<
+                http::Request<tonic::body::BoxBody>,
+                Response = http::Response<
+                    <T as tonic::client::GrpcService<tonic::body::BoxBody>>::ResponseBody,
+                >,
+            >,
+            <T as tonic::codegen::Service<
+                http::Request<tonic::body::BoxBody>,
+            >>::Error: Into<StdError> + std::marker::Send + std::marker::Sync,
+        {
+            ShredstreamProxyClient::new(InterceptedService::new(inner, interceptor))
+        }
+        /// Compress requests with the given encoding.
+        ///
+        /// This requires the server to support it otherwise it might respond with an
+        /// error.
+        #[must_use]
+        pub fn send_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.inner = self.inner.send_compressed(encoding);
+            self
+        }
+        /// Enable decompressing responses.
+        #[must_use]
+        pub fn accept_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.inner = self.inner.accept_compressed(encoding);
+            self
+        }
+        /// Limits the maximum size of a decoded message.
+        ///
+        /// Default: `4MB`
+        #[must_use]
+        pub fn max_decoding_message_size(mut self, limit: usize) -> Self {
+            self.inner = self.inner.max_decoding_message_size(limit);
+            self
+        }
+        /// Limits the maximum size of an encoded message.
+        ///
+        /// Default: `usize::MAX`
+        #[must_use]
+        pub fn max_encoding_message_size(mut self, limit: usize) -> Self {
+            self.inner = self.inner.max_encoding_message_size(limit);
+            self
+        }
+        pub async fn subscribe_entries(
+            &mut self,
+            request: impl tonic::IntoRequest<super::SubscribeEntriesRequest>,
+        ) -> std::result::Result<
+            tonic::Response<tonic::codec::Streaming<super::Entry>>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/shredstream.ShredstreamProxy/SubscribeEntries",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new("shredstream.ShredstreamProxy", "SubscribeEntries"),
+                );
+            self.inner.server_streaming(req, path, codec).await
+        }
+    }
+}