[Bug]: Resource mime-type is always stored as text/plain

[madhav165]

🐞 Bug Summary

Resource mime-type always stored as text/plain

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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. Store resource with mime type application/json
2. It would be stored as text/plain

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🤔 Expected Behavior

Resource should be stored with mime type given by user

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[MohanLaksh]

The issue no longer exists.
We are able to save resource mime-type given by the user.