[asselstine]

A Worker startup exception made the production session prerequisite fail, blocking deployment of the merged OAuth scope fix in #317. This documents restoring a compatible working version, handling Cloudflare secret-version error 10215, and the 2026-10-30 recovery evidence. The package migration rollback guide links to the procedure.

Production recovery is complete. An emergency upload applied the exact one-line fix from #317 while preserving every other bundle byte, all 20 bindings, assets, runtime settings, and the Durable Object migration tag. The normal main deployment then succeeded on attempt 3: https://github.com/GenerationSoftware/factorize/actions/runs/40984395531. Final production version: d979c2e9-3a50-46b8-bbc2-51c4dc996b21 (100% traffic).

Validation:

• Deployment-gate tests: 2 passed; git diff --check passed.
• Live public routing/security/cache verification passed after the normal deployment.
• Health, anonymous session, and authenticated jobs returned HTTP 200.
• Chromium home and sign-in pages rendered without page errors after the scope fix.
• A 15-second Cloudflare tail sample captured 33 events with zero exceptions; the temporary tail was deleted.
• Full npm test CI validation passed for final commit ce92189: https://github.com/GenerationSoftware/factorize/actions/runs/40985427635.
• Fresh Chromium home and sign-in checks also passed after the normal deployment, with zero page errors.

Supersedes #318 so the PR includes the final recovery documentation update. Repository changes are documentation only; no application or deployment gate behavior changes.