Feat: Admin Keys/Project Keys

[jjchen01]

Feat: Admin Keys/Project Keys

Description:

Endpoints provided:

• /jan/v1/organizations/*

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Change-Specific Checklist

Domain Changes

• This PR introduces changes to the domain models or business logic.
  • List of Changed Domains:
    • apikey
    • organizations

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Database Migration

• This PR includes a database migration.

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Endpoint Changes

• This PR adds, modifies, or removes API endpoints.
  • List of Changed Endpoints:
    • /jan/v1/organizations/*