wireguard creds fix

[Marketen]

This pull request refactors how WireGuard device configuration is fetched and displayed, introducing a new API route to retrieve either the remote or local configuration for a device. The UI is updated to handle loading and error states for local configs, and the backend logic is simplified and made more robust. The main changes are grouped below:

API and Backend Enhancements:

• Added a new API route wireguardDeviceConfigGet to fetch either the remote or local configuration for a WireGuard device, and updated the Routes interface and route data accordingly. [1] [2] [3] [4] [5] [6]
• Refactored backend logic to separate fetching of remote and local configs, added device existence checks, improved error handling with logging, and trimmed device names to avoid empty entries. [1] [2] [3]

Frontend/UI Improvements:

• Updated the device details UI to use the new wireguardDeviceConfigGet route, allowing independent fetching of local and remote configs, and added UI feedback for loading and error states when retrieving local credentials. [1] [2] [3] [4]
• Refactored the download handler to use the new config API and improved the logic for determining if the local config should be fetched.

These changes make the WireGuard configuration retrieval more modular, robust, and user-friendly.

[github-actions]

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