feat(tools): propagate timeout abort signals to tool execution

src/tools/executor.ts

@@ -225,6 +225,7 @@ export class ToolExecutor {
     });
 
     let timeoutHandle: NodeJS.Timeout | undefined;
+    const abortController = new AbortController();
     try {
       const result = await Promise.race([
         (async () => {
@@ -232,17 +233,20 @@ export class ToolExecutor {
             const sandboxSessionId = context?.sessionId ?? `${context?.channel ?? 'unknown'}:${context?.sender ?? 'unknown'}`;
             const sandbox = await this.sandboxManager.getOrCreate(sandboxSessionId);
             if (toolName === 'shell.exec') {
-              return createSandboxedShellTool(sandbox).execute(args);
+              return createSandboxedShellTool(sandbox).execute(args, { signal: abortController.signal });
             }
             if (toolName === 'process.start') {
-              return createSandboxedProcessStartTool(sandbox).execute(args);
+              return createSandboxedProcessStartTool(sandbox).execute(args, { signal: abortController.signal });
             }
           }
-          return tool.execute(args);
+          return tool.execute(args, { signal: abortController.signal });
         })(),
         new Promise<ToolResult>((_, reject) => {
           timeoutHandle = setTimeout(
-            () => reject(new Error(`Tool '${toolName}' timed out after ${this.defaultTimeoutMs}ms`)),
+            () => {
+              abortController.abort();
+              reject(new Error(`Tool '${toolName}' timed out after ${this.defaultTimeoutMs}ms`));
+            },
             this.defaultTimeoutMs,
           );
         }),