pumpswap consts are not absolute

[shayka211]

In src/utils/calc/pumpswap.rs
You are using:
use crate::instruction::utils::pumpswap::accounts::{
COIN_CREATOR_FEE_BASIS_POINTS, LP_FEE_BASIS_POINTS, PROTOCOL_FEE_BASIS_POINTS,
};
And using them in sell_base_input_internal and other functions. But this consts aint the truth, for example I stumbled across this pool jpqfphDxnEjSAguhGCeTZ74PU5A5ef1FBoV5u3an16b with the following fees fees: lp=20bps protocol=5bps creator=75bps total=100bps
At least I am pretty sure about it.

There is pumpfun site that may be accurate
https://pump.fun/docs/fees

and one can parse the accounts
&accounts::FEE_CONFIG
and do maybe something more accurate

[0xfnzero]

已修复，发布在 v4.0.22。

修复点：

• PumpSwap 不再只依赖固定 fee const 作为唯一来源。
• 新增 FeeConfig 解析和动态 fee tier 选择逻辑。
• 支持调用方/上游 parser 传入 lp_fee_basis_points、protocol_fee_basis_points、coin_creator_fee_basis_points，热路径不会为了 fee discovery 增加 RPC。
• 已覆盖 issue 中提到的 lp=20bps, protocol=5bps, creator=75bps bucket。

验证：

cargo test pumpswap --lib

相关测试包括：

• pumpswap_fee_tier_selects_issue_106_fee_bucket
• pumpswap_compute_fees_uses_tier_for_canonical_pool
• pumpswap_buy_uses_fee_basis_points_from_params_without_rpc