[Bug] enable_search_toggle will always evaluate to True

in the following code in agent_02_PlanningAgent.py
```
enable_search_toggle = self._determine_search_requirement().strip()
if self.debug:
print("Search toggle: ", enable_search_toggle)

# Create steps based on validation
steps = self._create_steps(validated_query, enable_search_toggle)
```

enable_search_toggle is a str but _create_steps expects a bool. Thus a "False" from enable_search_toggle would still evaluate as true inside the _create_steps function.