fix: single transaction for dyn tools injection (#10614)

codex-rs/state/src/runtime.rs

@@ -419,6 +419,7 @@ ON CONFLICT(id) DO UPDATE SET
             return Ok(());
         }
         let thread_id = thread_id.to_string();
+        let mut tx = self.pool.begin().await?;
         for (idx, tool) in tools.iter().enumerate() {
             let position = i64::try_from(idx).unwrap_or(i64::MAX);
             let input_schema = serde_json::to_string(&tool.input_schema)?;
@@ -439,9 +440,10 @@ ON CONFLICT(thread_id, position) DO NOTHING
             .bind(tool.name.as_str())
             .bind(tool.description.as_str())
             .bind(input_schema)
-            .execute(self.pool.as_ref())
+            .execute(&mut *tx)
             .await?;
         }
+        tx.commit().await?;
         Ok(())
     }