fix: bt auth ignored --json

[Cedric / ViaDézo1er (viadezo1er)]

and bt auth profiles --profile profile-name
now prints only the designated profile information

bt auth refresh honoring --json (same with bt auth login/logout, which is most useful with --no-input --api-key sk-... in scripts):
Before:

❯ bt auth refresh --json -o ced-test-1
Refreshing OAuth token for profile 'ced-test-1' (source: org-based resolution, api_url: https://api.braintrust.dev)
Cached access token expiry before refresh: 1784243644 (about 86379s remaining)
New access token expiry: 1784243665 (about 86399s remaining)
Refresh token rotation: yes
{"access_expires_at":1784243665,"auth":"oauth","name":"ced-test-1","refresh_token_rotated":true,"status":"ok"}

After:

❯ bt auth refresh --json -o ced-test-1
Refreshing OAuth token for profile 'ced-test-1' (source: org-based resolution, api_url: https://api.braintrust.dev)
Cached access token expiry before refresh: 1784243644 (about 86379s remaining)
New access token expiry: 1784243665 (about 86399s remaining)
Refresh token rotation: yes
{"access_expires_at":1784243665,"auth":"oauth","name":"ced-test-1","refresh_token_rotated":true,"status":"ok"}

--profile profile-name showing only the selected profile for bt auth profiles:
Before:

❯ bt auth profiles --profile 'ced-test-1'
! -/ — oauth — org: -/ — token expired
✓ BT Staging — api_key — org: BT Staging — sk-****O50s6
✓ Braintrust SDKs — oauth — org: Braintrust SDKs — Cédric Halber (cedric@braintrustdata.com)
✓ ced-test-1 — oauth — org: ced-test-1 — Cédric Halber (cedric@braintrustdata.com)
! ced1 — oauth — org: ced1 — token expired
✓ ced7 — oauth — org: ced7 — xnnjgu+4a442se9ppp9g@sharklasers.com
! ced8 — oauth — org: ced8 — token expired
! delete-this — oauth — org: delete-this — token expired
✓ profile — oauth — Cédric Halber (cedric@braintrustdata.com)

Credentials: /Users/cedric@braintrustdata.com/.config/bt/auth.json

After:

❯ bt auth profiles --profile 'ced-test-1'
✓ ced-test-1 — oauth — org: ced-test-1 — Cédric Halber (cedric@braintrustdata.com)

Credentials: /Users/cedric@braintrustdata.com/.config/bt/auth.json

Fix #249

[github-actions]

Latest downloadable build artifacts for this PR commit 8a7aace3aee0:

• Workflow run: https://github.com/braintrustdata/bt/actions/runs/29458601203
• Download all artifacts (GitHub CLI): gh run download 29458601203 --repo braintrustdata/bt
• Installers are published from main automatically. To publish one for a PR branch, run release-canary manually via workflow_dispatch.

Available artifact names

• artifacts-build-global
• artifacts-build-local-x86_64-apple-darwin
• artifacts-build-local-x86_64-pc-windows-msvc
• artifacts-build-local-aarch64-pc-windows-msvc
• artifacts-build-local-x86_64-unknown-linux-musl
• artifacts-build-local-aarch64-apple-darwin
• artifacts-build-local-x86_64-unknown-linux-gnu
• artifacts-build-local-aarch64-unknown-linux-gnu
• artifacts-plan-dist-manifest
• cargo-dist-cache

[Abhijeet Prasad (AbhiPrasad)]

let's remove these redundant comments.

[Cedric / ViaDézo1er (viadezo1er)]

Removed