fix: WSOL ATA creation in background with retry/timeout; silence unused and deprecated warnings

- lib: WSOL ATA creation moved to background to avoid blocking startup; ensure_wsol_ata adds 3 retries and 10s timeout
- lib: cfg(feature = "perf-trace") for DEFAULT_SLIPPAGE usage
- gas_fee_strategy, bloxroute, transaction_builder, async_executor, executor: prefix unused vars/params with underscore or allow
- pumpswap: add allow(deprecated) for get_program_accounts_with_config

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

src/swqos/bloxroute.rs

@@ -111,7 +111,7 @@ impl BloxrouteClient {
         Ok(())
     }
 
-    pub async fn send_transactions(&self, trade_type: TradeType, transactions: &Vec<VersionedTransaction>, wait_confirmation: bool) -> Result<()> {
+    pub async fn send_transactions(&self, trade_type: TradeType, transactions: &Vec<VersionedTransaction>, _wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
 
         let body = serde_json::json!({