feat: put deployments into the user's default project

[colinnielsen]

Background

Checklist

• Documentation updated
• Tested code changes

[linear]

MP-434 Pass auth between CLI -> preview-service requests

Metro import, preview, and deploy should send authorization headers to the backend with their deployment request, it should add it to their default project in their user org.

• [CLI] Add authorization headers to POST requests to /deploy if the ID token exists
  • Add to $ metro import
  • Add to $ metro deploy
  • Add to $ metro preview
• [PRV:SRV] load the user based on authorization headers
• [PRV:SRV] add a project?: stringflag to the DeployRequestParams
• [PRV:SRV] validate the project exists if specified and add it, otherwise add it to the default project

[kevinweaver]

Just have 2 conflicts