fix: populate Pump creation transaction version on Shred paths

README.md

@@ -301,7 +301,7 @@ instruction args, while log-only `CreatePoolEvent` payloads keep the default
 account value is also available from
 `PumpSwapPoolAccountEvent.pool.is_cashback_coin`.
 
-`PumpFunCreateTokenEvent.transaction_version` reports the transaction message version as `Some(YellowstoneMessageVersion::Legacy)`, `V0` or `V1` on gRPC/RPC. JSON uses `"legacy"`, `"v0"` and `"v1"`. It remains `None` without transaction context (including standalone Shred parsing). This is independent of the Pump instruction name in `ix_name`.
+`PumpFunCreateTokenEvent.transaction_version` reports the transaction message version as `Some(YellowstoneMessageVersion::Legacy)`, `V0` or `V1` on Shred/gRPC/RPC. JSON uses `"legacy"`, `"v0"` and `"v1"`. It remains `None` without transaction context (for example, parsing an isolated event log). This is independent of the Pump instruction name in `ix_name`.
 
 <a id="trade-provenance-and-parsing-boundaries"></a>
 

README_CN.md

@@ -281,7 +281,7 @@ log-only 的 `CreatePoolEvent` payload 因为 IDL 不包含该字段，会保持
 `false`。账户里的权威值也可通过
 `PumpSwapPoolAccountEvent.pool.is_cashback_coin` 读取。
 
-`PumpFunCreateTokenEvent.transaction_version` 在 gRPC/RPC 路径下表示交易消息版本：`Some(YellowstoneMessageVersion::Legacy)`、`V0` 或 `V1`，JSON 分别为 `"legacy"`、`"v0"`、`"v1"`。缺少交易上下文时（包括独立 Shred 解析）为 `None`。该字段与 `ix_name` 表示的 Pump 指令版本相互独立。
+`PumpFunCreateTokenEvent.transaction_version` 在 Shred/gRPC/RPC 路径下表示交易消息版本：`Some(YellowstoneMessageVersion::Legacy)`、`V0` 或 `V1`，JSON 分别为 `"legacy"`、`"v0"`、`"v1"`。缺少交易上下文时（例如单独解析一条事件日志）为 `None`。该字段与 `ix_name` 表示的 Pump 指令版本相互独立。
 
 <a id="交易来源与解析边界"></a>
 

src/streaming/common/event_processor.rs

@@ -533,7 +533,11 @@ mod tests {
     async fn shred_transaction_preserves_unknown_tx_index() {
         let event = parse_single_shred_create(None).await;
 
-        assert!(matches!(event, DexEvent::PumpFunCreateTokenEvent(_)));
+        let DexEvent::PumpFunCreateTokenEvent(create) = &event else { panic!("create callback") };
+        assert_eq!(
+            create.transaction_version,
+            Some(sol_parser_sdk::YellowstoneMessageVersion::V0)
+        );
         assert_eq!(event.metadata().tx_index, None);
     }
 

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

@@ -7,7 +7,7 @@ use crate::streaming::event_parser::protocols::pumpfun::types::{BondingCurve, Gl
 
 #[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize, BorshDeserialize)]
 pub struct PumpFunCreateTokenEvent {
-    /// Transaction message version from gRPC/RPC context, independent of create/create_v2.
+    /// Transaction message version from Shred/gRPC/RPC context, independent of create/create_v2.
     #[borsh(skip)]
     #[serde(default)]
     pub transaction_version: Option<sol_parser_sdk::grpc::YellowstoneMessageVersion>,