Release v3.5.0: performance, constants, bilingual docs

- Bump version to 3.5.0
- Performance: hot-path timing only when log_enabled/simulate; execute_parallel takes &[Arc<SwqosClient>]; shared HTTP client constants for SWQoS
- Code quality: validate_protocol_params extracted for buy/sell; BYTES_PER_ACCOUNT, MAX_INSTRUCTIONS_WARN, HTTP timeout constants; prefetch/syscall bypass comments
- Documentation: bilingual (EN + 中文) doc comments in execution, executor, perf, swqos; README/README_CN version and What's new in 3.5.0
- Add release_notes_v3.5.0.md

Co-authored-by: Cursor <cursoragent@cursor.com>

src/common/gas_fee_strategy.rs

@@ -354,6 +354,9 @@ impl GasFeeStrategy {
     /// 打印所有策略。
     /// Print all strategies
     pub fn print_all_strategies(&self) {
+        if !crate::common::sdk_log::sdk_log_enabled() {
+            return;
+        }
         for strategy in self.get_strategies(TradeType::Buy) {
             println!("[buy] - {:?}", strategy);
         }