feat: upgrade to v0.1.8 and add volume accumulator support

- Bump version from 0.1.7 to 0.1.8
- Update version references in README.md and README_CN.md
- Add global_volume_accumulator and user_volume_accumulator fields to PumpFunTradeEvent
- Fix account index mapping in trade parser (creator_vault index adjusted from 8 to 9)

This update introduces volume accumulator support for PumpFun protocol event parsing,
aligning with the latest protocol account structure changes.

src/streaming/event_parser/protocols/pumpfun/events.rs

@@ -2,8 +2,8 @@ use borsh::BorshDeserialize;
 use serde::{Deserialize, Serialize};
 use solana_sdk::pubkey::Pubkey;
 
-use crate::streaming::event_parser::common::EventMetadata;
 use crate::impl_unified_event;
+use crate::streaming::event_parser::common::EventMetadata;
 
 #[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize, BorshDeserialize)]
 pub struct PumpFunCreateTokenEvent {
@@ -55,7 +55,7 @@ pub struct PumpFunTradeEvent {
     pub real_sol_reserves: u64,
     pub real_token_reserves: u64,
     pub fee_recipient: Pubkey,
-    pub fee_basis_points: u64, 
+    pub fee_basis_points: u64,
     pub fee: u64,
     pub creator: Pubkey,
     pub creator_fee_basis_points: u64,
@@ -78,6 +78,10 @@ pub struct PumpFunTradeEvent {
     pub is_bot: bool,
     #[borsh(skip)]
     pub is_dev_create_token_trade: bool, // 是否是dev创建token的交易
+    #[borsh(skip)]
+    pub global_volume_accumulator: Pubkey,
+    #[borsh(skip)]
+    pub user_volume_accumulator: Pubkey,
 }
 
 impl_unified_event!(

src/streaming/event_parser/protocols/pumpfun/parser.rs

@@ -174,7 +174,9 @@ impl PumpFunEventParser {
             associated_bonding_curve: accounts[4],
             associated_user: accounts[5],
             user: accounts[6],
-            creator_vault: accounts[8],
+            creator_vault: accounts[9],
+            global_volume_accumulator: accounts[12],
+            user_volume_accumulator: accounts[13],
             max_sol_cost,
             amount,
             is_buy: true,
@@ -209,7 +211,7 @@ impl PumpFunEventParser {
             associated_bonding_curve: accounts[4],
             associated_user: accounts[5],
             user: accounts[6],
-            creator_vault: accounts[8],
+            creator_vault: accounts[9],
             min_sol_output,
             amount,
             is_buy: false,