Auth: Generate API Key per project instead of per organisation

[nishika26]

Description:
Currently, API keys are generated based on a combination of organization ID and user ID. We want to modify this process so that the API key is generated using the organization ID, project ID, and user ID.

This change will ensure that the API key is tied to a specific project within an organization, enabling more granular control and making the platform project-aware, while still preserving the association with the user.

[avirajsingh7]

@nishika26 on discussion with @AkhileshNegi I have updated the issue description.