[Bug]: samples/python/hosts/multiagent/host_agent.py task use before assign

### What happened?

A bug happened!

In samples/python/hosts/multiagent/host_agent.py line 181
task use before assign

### Relevant log output

```shell

```

### Code of Conduct

- [x] I agree to follow this project's Code of Conduct

The issue points to line 181 in samples/python/hosts/multiagent/host_agent.py where a 'task' variable is used before assignment. First, examine the code around that line to understand the context and the variable's intended scope. Look for any related tests or similar patterns in the repository to see how tasks are typically assigned. The fix likely involves ensuring the variable is initialized before use, but the exact change depends on the surrounding logic.

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