🐞 Bug Summary

Briefly describe the issue or unexpected behavior.
w ping because the refresh token is not yet implemented..

🧩 Affected Component

Select the area of the project impacted:

• mcpgateway - API
• mcpgateway - UI (admin panel)
• mcpgateway.wrapper - stdio wrapper
• Federation or Transports
• CLI, Makefiles, or shell scripts
• Container setup (Docker/Podman/Compose)
• Other (explain below)

🔁 Steps to Reproduce

1. I add an OAUTH2 authenticated server https://api.githubcopilot.com/mcp/.
2. I can "authorise" and fetch tools
3. After 24h Server is shown as "offline

🤔 Expected Behavior

Seems that _refresh_access_token needs to be implemented

📓 Logs / Error Output

2025-09-16 14:05:02,116 - mcpgateway.services.token_storage_service - INFO - OAuth token expired for gateway 0cceff485d5145a493911c846fa2b9b0
2025-09-16 14:05:02,117 - mcpgateway.services.token_storage_service - INFO - Token refresh not yet implemented for gateway 0cceff485d5145a493911c846fa2b9b0

🧠 Environment Info

You can retrieve most of this from the /version endpoint.

🧩 Additional Context (optional)

Add any configuration details, flags, or related issues.