feat: pass auth tokens by reference, not value

[jonathanlab]

Problem

We've split up the auth store in the previous PR into a service, but now we're not actually using it properly. A lot of services use their own (stale) local auth token value. We instead want to use the auth services token.

Changes

• update main services to et auth token through AuthService instead of storing it away somewhere locally
• agent package now accepts a get token and refresh token function instead of a token value
• clean up a bunch of auth code

[jonathanlab]

• feat: improve auth service resilience #1367
• feat: persist preferred project by account key #1366
• refactor: hook up renderer auth logic to service #1365
• feat: pass auth tokens by reference, not value #1362 👈 (View in Graphite)
• refactor: move auth to main #1360
• main

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[jonathanlab]

Merge activity

• Apr 1, 9:59 AM UTC: A user started a stack merge that includes this pull request via Graphite.
• Apr 1, 10:02 AM UTC: Graphite rebased this pull request as part of a merge.
• Apr 1, 10:08 AM UTC: Graphite couldn't merge this PR because it was not satisfying all requirements (PR does not have required approvals).
• Apr 1, 10:10 AM UTC: A user started a stack merge that includes this pull request via Graphite.
• Apr 1, 10:10 AM UTC: @jonathanlab merged this pull request with Graphite.

The base branch was changed.