Add “Powered by”, Theme Logos, and Copyright Info to Settings Definition

[DJJones66]

Description

We want to enhance the settings definition to include branding and attribution fields, and update the core system to pull this information dynamically.

Specifically, we need to:

1. Extend Settings Definition

   • Add a “Powered by” field (string).
   • Add dark/light theme logo image paths/URLs.
   • Add a copyright line (string).

2. Update Core Behavior

   • Ensure the core looks for and uses these new fields from the settings definition.
   • Display the correct logo variant based on the active theme (dark/light).
   • Render the “Powered by” and copyright text consistently in relevant UI locations (e.g., footer, settings pages).

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Acceptance Criteria

• Settings definition schema updated with the new fields.
• Core retrieves these values correctly at runtime.
• Logos switch correctly between dark and light themes.
• “Powered by” text is displayed as configured.
• Copyright line is visible and styled consistently.

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Additional Notes

• This will centralize branding info in settings, making it easier to configure and maintain.
• Consider default values for installs that don’t provide this info.
• Should be extensible for future branding or attribution requirements.

[DJJones66]

Resolved by PR #61
Resolved by PR #60