feat: Pump.fun mayhem_mode, Solana 3.1.12, TradeConfig builder alignment

- PumpFunParams::from_trade/from_dev_trade: add mayhem_mode Option; infer Mayhem
  via is_mayhem_fee_recipient when None (fixes fee recipient / NotAuthorized 6000
  when AMM protocol fee pubkey is used).
- Add is_mayhem_fee_recipient and is_amm_fee_recipient helpers in pumpfun utils.
- Bump solana-* crates to 3.1.12; align tonic/prost; use solana-message for
  AddressLookupTableAccount; add solana-system-interface 3.0.
- Update examples and latency script for new PumpFunParams signature.
- SWQoS and transaction builder adjustments for dependency changes.

Made-with: Cursor

src/trading/common/utils.rs

@@ -1,5 +1,5 @@
 use solana_sdk::{pubkey::Pubkey, signature::Keypair, signer::Signer, transaction::Transaction};
-use solana_system_interface::instruction::transfer;
+use solana_system_interface::instruction as system_instruction;
 
 use crate::common::{
     fast_fn::{
@@ -88,7 +88,7 @@ pub async fn transfer_sol(
         return Err(anyhow!("Insufficient balance"));
     }
 
-    let transfer_instruction = transfer(&payer.pubkey(), receive_wallet, amount);
+    let transfer_instruction = system_instruction::transfer(&payer.pubkey(), receive_wallet, amount);
 
     let recent_blockhash = rpc.get_latest_blockhash().await?;