feat: refactor trading architecture with unified framework

- Add unified TradeExecutor interface and protocol abstraction
- Refactor PumpFun/PumpSwap into adapter pattern
- Introduce TradeFactory for multi-protocol support
- Add parallel execution and unified parameter system
- Include Raydium protocol support and log parsing
- Simplify codebase structure and improve maintainability

src/trading/common/mod.rs

@@ -0,0 +1,10 @@
+pub mod nonce_manager;
+pub mod transaction_builder;
+pub mod compute_budget_manager;
+pub mod address_lookup_manager;
+
+// Re-export commonly used functions
+pub use nonce_manager::*;
+pub use transaction_builder::*;
+pub use compute_budget_manager::*;
+pub use address_lookup_manager::*;