Add unifi_discovery brand symlink

[RaHehl]

Proposed change

Add unifi_discovery brand symlink

Type of change

• Add a new logo or icon for a new core integration
• Add a missing icon or logo for an existing core integration
• Replace an existing icon or logo with a higher quality version
• Replace an existing icon or logo after a branding change
• Removing an icon or logo

Additional information

• This PR fixes or closes issue: fixes #
• Link to code base pull request: Add unifi_discovery integration, migrate unifiprotect discovery core#168030
• Link to documentation pull request: Add UniFi Discovery integration documentation home-assistant.io#44733
• Link to integration documentation on our website:

Checklist

• The added/replaced image(s) are PNG
• Icon image size is 256x256px (icon.png)
• hDPI icon image size is 512x512px for (icon@2x.png)
• Logo image size has min 128px, but max 256px, on the shortest side (logo.png)
• hDPI logo image size has min 256px, but max 512px, on the shortest side (logo@2x.png)

[Copilot]

Pull request overview

Adds brand assets for the new unifi_discovery core integration by reusing the existing UniFi branding via a symlinked domain folder, avoiding duplicated image files.

Changes:

• Add core_integrations/unifi_discovery as a symlink to the existing UniFi brand assets.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.