[Bug]: Long input names in tool creation reflected back to user in error message

[madhav165]

🐞 Bug Summary

Long input names in tool creation reflected back to user in error message

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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. Run the following

curl -X POST http://localhost:4444/tools -H "Authorization: Bearer $MCPGATEWAY_BEARER_TOKEN" -H "Content-Type: application/json" -d '{"name": "'"$(printf 'a%.0s' {1..300})"'", "url": "https://example.com"}'

2. Error returns input

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🤔 Expected Behavior

Error response should not return input back to user.

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[kevalmahajan]

Closed by #664