fix(delegate-task): align background-continuation title with args.description

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/tools/delegate-task/background-continuation.ts

@@ -35,7 +35,7 @@ export async function executeBackgroundContinuation(
     const resolvedModel = resolveMetadataModel(task.model, parentContext.model)
 
     const bgContMeta = {
-      title: `Continue: ${task.description}`,
+      title: `Continue: ${args.description}`,
       metadata: {
         prompt: args.prompt,
         agent: task.agent,