[WIP] Fix issues with vercel deployment. #Error: Environment Variable "MONGODB_URI" references Secret "mongodb_uri", which does not exist. And check for other issues and implement it for full production

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original description:

Fix issues with vercel deployment. #Error: Environment Variable "MONGODB_URI" references Secret "mongodb_uri", which does not exist. And check for other issues and implement it for full production

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[vercel]

Deployment failed with the following error:

Environment Variable "MONGODB_URI" references Secret "mongodb_uri", which does not exist.

Learn More: https://vercel.com/docs/environment-variables

[netlify]

❌ Deploy Preview for rococo-croquembouche-5ab5cd failed. Why did it fail? →

Name	Link
🔨 Latest commit	3de70b6
🔍 Latest deploy log	https://app.netlify.com/projects/rococo-croquembouche-5ab5cd/deploys/68aabce7fb6c0400087fedcd

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