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/streaming/event_parser/protocols/bonk/events.rs

@@ -0,0 +1,126 @@
+use crate::streaming::event_parser::protocols::bonk::types::{
+    CurveParams, MintParams, PoolStatus, TradeDirection, VestingParams,
+};
+use crate::streaming::event_parser::common::EventMetadata;
+use crate::impl_unified_event;
+use borsh::BorshDeserialize;
+use serde::{Deserialize, Serialize};
+use solana_sdk::pubkey::Pubkey;
+
+/// 买入事件
+#[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize, BorshDeserialize)]
+pub struct BonkTradeEvent {
+    #[borsh(skip)]
+    pub metadata: EventMetadata,
+    pub pool_state: Pubkey,
+    pub total_base_sell: u64,
+    pub virtual_base: u64,
+    pub virtual_quote: u64,
+    pub real_base_before: u64,
+    pub real_quote_before: u64,
+    pub real_base_after: u64,
+    pub real_quote_after: u64,
+    pub amount_in: u64,
+    pub amount_out: u64,
+    pub protocol_fee: u64,
+    pub platform_fee: u64,
+    pub share_fee: u64,
+    pub trade_direction: TradeDirection,
+    pub pool_status: PoolStatus,
+    #[borsh(skip)]
+    pub minimum_amount_out: u64,
+    #[borsh(skip)]
+    pub maximum_amount_in: u64,
+    #[borsh(skip)]
+    pub share_fee_rate: u64,
+    #[borsh(skip)]
+    pub payer: Pubkey,
+    #[borsh(skip)]
+    pub user_base_token: Pubkey,
+    #[borsh(skip)]
+    pub user_quote_token: Pubkey,
+    #[borsh(skip)]
+    pub base_vault: Pubkey,
+    #[borsh(skip)]
+    pub quote_vault: Pubkey,
+    #[borsh(skip)]
+    pub base_token_mint: Pubkey,
+    #[borsh(skip)]
+    pub quote_token_mint: Pubkey,
+    #[borsh(skip)]
+    pub is_dev_create_token_trade: bool,
+    #[borsh(skip)]
+    pub is_bot: bool,
+}
+
+// 使用宏生成UnifiedEvent实现，指定需要合并的字段
+impl_unified_event!(
+    BonkTradeEvent,
+    pool_state,
+    total_base_sell,
+    virtual_base,
+    virtual_quote,
+    real_base_before,
+    real_quote_before,
+    real_base_after,
+    real_quote_after,
+    amount_in,
+    amount_out,
+    protocol_fee,
+    platform_fee,
+    share_fee,
+    trade_direction,
+    pool_status
+);
+
+/// 创建池事件
+#[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize, BorshDeserialize)]
+pub struct BonkPoolCreateEvent {
+    #[borsh(skip)]
+    pub metadata: EventMetadata,
+    pub pool_state: Pubkey,
+    pub creator: Pubkey,
+    pub config: Pubkey,
+    pub base_mint_param: MintParams,
+    pub curve_param: CurveParams,
+    pub vesting_param: VestingParams,
+    #[borsh(skip)]
+    pub payer: Pubkey,
+    #[borsh(skip)]
+    pub base_mint: Pubkey,
+    #[borsh(skip)]
+    pub quote_mint: Pubkey,
+    #[borsh(skip)]
+    pub base_vault: Pubkey,
+    #[borsh(skip)]
+    pub quote_vault: Pubkey,
+    #[borsh(skip)]
+    pub global_config: Pubkey,
+    #[borsh(skip)]
+    pub platform_config: Pubkey,
+}
+
+// 使用宏生成UnifiedEvent实现，指定需要合并的字段
+impl_unified_event!(
+    BonkPoolCreateEvent,
+    pool_state,
+    creator,
+    config,
+    base_mint_param,
+    curve_param,
+    vesting_param
+);
+
+/// 事件鉴别器常量
+pub mod discriminators {
+    // 事件鉴别器
+    pub const TRADE_EVENT: &str = "0xe445a52e51cb9a1dbddb7fd34ee661ee";
+    pub const POOL_CREATE_EVENT: &str = "0xe445a52e51cb9a1d97d7e20976a173ae";
+
+    // 指令鉴别器
+    pub const BUY_EXACT_IN: &[u8] = &[250, 234, 13, 123, 213, 156, 19, 236];
+    pub const BUY_EXACT_OUT: &[u8] = &[24, 211, 116, 40, 105, 3, 153, 56];
+    pub const SELL_EXACT_IN: &[u8] = &[149, 39, 222, 155, 211, 124, 152, 26];
+    pub const SELL_EXACT_OUT: &[u8] = &[95, 200, 71, 34, 8, 9, 11, 166];
+    pub const INITIALIZE: &[u8] = &[175, 175, 109, 31, 13, 152, 155, 237];
+}