fix(artifacts): align binding result types

[dmmulroy]

Supersedes #6602 with the branch rebased onto current main and snapshots regenerated through the supported pipeline. The original commits retain @mattzcarey as author.

The Artifacts provider intentionally removed tokenExpiresAt because the returned token encodes expiry as ?expires=<unix_seconds>. This updates ArtifactsCreateRepoResult accordingly and documents the token encoding. It also retains #6602’s follow-up correction that listed repositories include remote.

Validation

• just generate-types (rerun clean; generated snapshots match)
• just format
• bazel test //types/... (26/26 passed)

[dmmulroy]

@NuroDev You approved the original #6602. This is the same change rebased onto current main, with snapshots regenerated to resolve the previous check-snapshot failure.

[codspeed-hq]

Merging this PR will not alter performance

✅ 72 untouched benchmarks
⏩ 129 skipped benchmarks¹

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_{Comparing dmmulroy:fix/artifacts-binding-result-types (0a8f4e0) with main (5b87a2c)}

Footnotes

1. 129 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩