fix: When the plugins field in the .character.json file is configured with plugin name.

[xwxtwd]

Fix the issue where running the program throws an error when the plugins field in the .character.json file is configured with plugin names.

Relates to:

N/A

Risks

Low.

1. May impact existing character configurations relying on specific plugin behaviors.

Background

What does this PR do?

This PR fixes an issue where the application would throw an error when the plugins field in the .character.json file was configured with plugin names (strings). The change ensures that plugin names are properly handled during runtime without requiring additional manual configuration.

What kind of change is this?

Bug fixes (non-breaking change which fixes an issue)

Documentation changes needed?

No.
The change aligns the behavior with the expected functionality, so no additional documentation updates are required.

Testing

Where should a reviewer start?

Start by reviewing the changes to the code responsible for loading and processing the plugins field in .character.json.

Detailed testing steps

1.	Create a .character.json file with the plugins field configured as an array of plugin names (e.g., ["pluginA", "pluginB"]).
2.	Start the application and ensure no errors occur during runtime.
3.	Verify that the listed plugins are loaded and functional.
4.	Test with an empty plugins array and verify proper behavior.