Add inactive VuMark credentials to secrets

[adamtheturtle]

Summary

• Updated all 100 secrets files with INACTIVE_VUMARK_* credentials from a newly created inactive VuMark database
• Re-encrypted secrets archive with GPG using existing passphrase
• Added helper script admin/add_inactive_vumark_secrets.py for updating secrets in the future with new inactive VuMark databases

Changes

• secrets.tar.gpg: Updated archive containing ci_secrets with new INACTIVE_VUMARK fields
• admin/add_inactive_vumark_secrets.py: New script that creates an inactive VuMark database and updates all existing secrets files

This implements the infrastructure for the shared inactive VuMark database referenced in commit 74d386d.

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Note

Low Risk
The provided diff contains only a deletion marker (+++ /dev/null) without a filename or content, so the actual change cannot be verified; based on what’s shown, it’s a low-risk no-op or single-file deletion.

Overview
The supplied full_diff does not include any file paths or content changes—only a +++ /dev/null line—so the PR’s actual modifications can’t be determined from the diff.

Based strictly on what’s shown, the change is either a no-op diff capture issue or a single file deletion with no further context.

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