Restore unarchived documents as drafts

[gearnode]

Summary

• Ensure unarchiving a published document creates a latest draft version.
• Apply the same draft restoration behavior to bulk unarchive for documents that were archived.
• Wrap bulk unarchive errors with contextual messages.
• Add console e2e coverage for publishing, archiving, and unarchiving a document.

Testing

• make go-fmt
• make bin/probod
• go test ./pkg/probo -run TestDoesNotExist -count=0
• go test -c ./e2e/console -o /tmp/console.test
• Attempted: PROBO_E2E_BINARY=/workspace/bin/probod PROBO_E2E_CONFIG=/workspace/e2e/console/testdata/config.yaml go test ./e2e/console -run TestDocument_UnarchivePublishedDocumentCreatesDraft -count=1 (blocked: local PostgreSQL/Docker stack unavailable; docker is not installed in this environment)

  

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Summary by cubic

Unarchiving a document now restores a latest draft for both single and bulk actions. Adds console e2e coverage to verify publish → archive → unarchive creates a draft and reactivates the document.

Service +102 -3

• Bulk and single unarchive run in a transaction, ensure the latest version is a draft, and wrap errors with context.
• Pending approvals are voided and converted to a draft with the next minor (or 0.1 if none).
• From a published version, a new draft is created after unarchive.

Tests +112 -0

• Added e2e test confirming unarchiving a published document creates draft v1.1 and sets status to ACTIVE.

^{Written for commit 295bf81. Summary will update on new commits.}