[Bug] Organization Mongo ObjectId initialized to empty when signing up through Github

[anyazz]

Describe the bug
Organization ID not getting set properly when signing up through Github. Confirmed that signing in w/ Google works instead.

To Reproduce
Sign in through Github

agenta init
? Please enter the app name app
? Where are you running agenta? On agenta cloud
? API Key found: [KEY]
Do you want to use this API Key? Yes
? Which organization do you want to create the app for? [USER]: My Default Organization
Error: status_code: 500, body: {'detail': "'' is not a valid ObjectId, it must be a 12-byte input or a 24-character hex string"}

Expected behavior
Expected to proceed to app initialization step

Screenshots
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Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Important Context
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1. Network Logs in the Browser:

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2. Docker Containers Information:

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   • Please provide us the with a screenshot of the logs for the agenta-backend docker container.

3. Additional Information:

   • Include any additional details, error messages, or observations that may be helpful.

Please make sure to provide all the requested information to expedite the debugging process. Thank you for helping us improve our project!

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