fix(tool): preserve tool id and name in timeout error results (#1431)

When a tool call times out in `executeWithInfrastructure()`, the error
path via `onErrorResume` creates a `ToolResultBlock.error()` without
calling `withIdAndName()`. The normal path goes through `.map()` which
correctly sets id/name, but timeout errors bypass `.map()`.

This causes `PostActingEvent.getToolResult()` to return a
`ToolResultBlock` with null id and name, while `getToolResultMsg()` has
the correct values (rebuilt from `ToolUseBlock` by
`ToolResultMessageBuilder`).

Fix: chain `.withIdAndName(toolCall.getId(), toolCall.getName())` in the
`onErrorResume` handler.

Fixes #1389

Author: Sparkle6979

agentscope-core/src/main/java/io/agentscope/core/tool/ToolExecutor.java

@@ -336,7 +336,8 @@ private Mono<ToolResultBlock> executeWithInfrastructure(
                             logger.warn("Tool call failed: {}", toolCall.getName(), e);
                             String errorMsg = ExceptionUtils.getErrorMessage(e);
                             return Mono.just(
-                                    ToolResultBlock.error("Tool execution failed: " + errorMsg));
+                                    ToolResultBlock.error("Tool execution failed: " + errorMsg)
+                                            .withIdAndName(toolCall.getId(), toolCall.getName()));
                         });
     }