Improve UI/UX to clearly indicate app creator and pricing information

Problem

Currently, when viewing apps in the Puter ecosystem (particularly on https://apps.puter.com/), it's unclear:

1. Who created the app - Whether it's from the official Puter team or a community/third-party developer
2. Pricing information - Whether an app is free or paid

This creates friction for users trying to understand the origin and cost of applications they're considering launching.

Context

Based on the file src/backend/controllers/homepage/HomepageController.ts, the app metadata structure supports displaying app information when rendering app shells. However, the current UI/UX doesn't leverage this to make the creator and pricing status prominent.

Proposed Solution

Improve the app display UI/UX to clearly show:

• Creator badge or label - Distinguish between official Puter team apps and community-contributed apps from third-party developers
• Pricing indicator - Clearly display whether an app is free or paid (and ideally the price if available)
• Developer/Publisher info - Show the developer/publisher name or link to their profile

Example Implementation Areas

1. App landing page (/app/:name) - Add creator badge and pricing information to the app card/header
2. App marketplace listing - Add visual indicators in the app list view
3. App metadata store - Consider extending the app metadata schema (if not already present) to include creator type/verified status and pricing information

Expected Outcome

Users can quickly and easily identify whether an app is:

• Created by the official Puter team
• Created by a community member or third-party developer
• Free or paid

This will build trust and transparency in the Puter app ecosystem/marketplace.