Three CI fixes triggered by the failed PR #137 deploy:
1. scripts/smoke-test.sh: assertion 8 was hitting /api/admin/tables (renamed to /api/admin/registry long ago). The 404 was treated as deployment regression and triggered the auto-rollback. Same stale URL also fixed in CLAUDE.md, README.md, dev_docs/server.md.
2. .github/workflows/release.yml smoke-test job: added Log in to GHCR step. The auto-rollback's docker push :stable was failing with 'unauthenticated' because the smoke-test job had no GHCR login of its own — leaving :stable pointing at the broken image.
3. Rollback step gained GH_TOKEN env, AND the workflow's permissions block gained issues:write. Both were needed for gh issue create to actually create the alert issue (was silently swallowed by the || echo fallback).
Manual cleanup outside this PR: :stable currently points at the broken PR #137 image — needs manual retag back to stable-2026.04.505.
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