[Bug]: Gateway ID returned as null by Gateway Create API

[madhav165]

🐞 Bug Summary

Gateway ID returned as null by Gateway Create API

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🧩 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)

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🔁 Steps to Reproduce

1. Create gateway through API

curl -X POST -H "Authorization: Bearer $MCPGATEWAY_BEARER_TOKEN" -H "Content-Type: application/json" -d '{"name":"time_server_noauth","url":"http://127.0.0.1:8101/sse","transport":"SSE"}' $GW_URL/gateways | jq

2. Response is returned with id null

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🤔 Expected Behavior

Response should show the ID created for the gateway.

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