#139 Release pm-beads v2026.10.12

Automated daily release metadata for v2026.10.12. The release gate passed before this PR was created; npm publication and tagging remain blocked until this protected PR is merged.

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Summary by cubic

Bumps pm-beads to v2026.10.12 across the extension metadata, manifest, and lockfile so the release can proceed.

This automated release PR was created after the release gate passed. npm publication and tagging remain blocked until this protected PR is merged.