Setup Zoom Oauth

If you're integrating Zoom's API, you'll hit auth before anything else works. This walks you through picking the right app type and OAuth grant, scoping permissions tightly instead of asking for everything, and handling token refresh without the classic mistake of reusing an old refresh token. It forces you to clarify who's authorizing what before you pick a flow, which saves you from rebuilding later. The best part is it treats auth configuration bugs separately from API failures, so you're not chasing the wrong problem. Use it when auth is blocking progress or when your choice of flow will determine the entire integration architecture.