rename to PartyInfo; README fees

src/IPartyInfo.sol

@@ -3,7 +3,7 @@ pragma solidity ^0.8.30;
 
 import {IPartyPool} from "./IPartyPool.sol";
 
-interface IPartyPoolViewer {
+interface IPartyInfo {
     /// @notice Marginal price of `base` denominated in `quote` as Q64.64.
     /// @dev Returns the LMSR marginal price p_quote / p_base in ABDK 64.64 fixed-point format.
     ///      Useful for off-chain quoting; raw 64.64 value is returned (no scaling to token units).

src/PartyInfo.sol

@@ -5,13 +5,13 @@ import "forge-std/console2.sol";
 import {ABDKMath64x64} from "../lib/abdk-libraries-solidity/ABDKMath64x64.sol";
 import {IERC20} from "../lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
 import {IPartyPool} from "./IPartyPool.sol";
-import {IPartyPoolViewer} from "./IPartyPoolViewer.sol";
+import {IPartyInfo} from "./IPartyInfo.sol";
 import {LMSRStabilized} from "./LMSRStabilized.sol";
 import {PartyPoolHelpers} from "./PartyPoolHelpers.sol";
 import {PartyPoolMintImpl} from "./PartyPoolMintImpl.sol";
 import {PartyPoolSwapImpl} from "./PartyPoolSwapImpl.sol";
 
-contract PartyPoolViewer is PartyPoolHelpers, IPartyPoolViewer {
+contract PartyInfo is PartyPoolHelpers, IPartyInfo {
     using ABDKMath64x64 for int128;
 
     PartyPoolSwapImpl immutable internal SWAP_IMPL;

src/PartyPool.sol

@@ -19,7 +19,7 @@ import {SafeERC20} from "../lib/openzeppelin-contracts/contracts/token/ERC20/uti
 import {IERC3156FlashLender} from "../lib/openzeppelin-contracts/contracts/interfaces/IERC3156FlashLender.sol";
 import {NativeWrapper} from "./NativeWrapper.sol";
 import {OwnableExternal} from "./OwnableExternal.sol";
-import {IPartyPoolViewer} from "./IPartyPoolViewer.sol";
+import {IPartyInfo} from "./IPartyInfo.sol";
 
 /// @title PartyPool - LMSR-backed multi-asset pool with LP ERC20 token
 /// @notice A multi-asset liquidity pool backed by the LMSRStabilized pricing model.