Unblocks docker-image-scan (red 5 runs straight on GHSA-f88m-g3jw-g9cj: next's nested sharp@0.34.5, deduped via an override).
Finishes the #1218 Sonnet 5 rollout: compliance-pr and compliance-swarm were falling through to compliancemaxx's sonnet-4-6 default; swedish-compliance-review.mjs budgeted max_tokens as if thinking were off (it is adaptive-by-default on Sonnet 5) and never checked stop_reason; pr-agent's token budgets were sized for 4.6's tokenizer and its hidden default OpenAI fallback list is now emptied explicitly.
Core build 7m43s -> 2m51s measured (parallel checks/build/test, unit suite sharded 4 ways). Docker publish moves off QEMU to native ARM runners with a digest-merge job, so tags apply only on success and latest never moves on failure.
40 actions pinned to immutable SHAs; adds zizmor (0 high after fixing persist-credentials on 7 checkouts and permissions on test-pg-real) and CodeQL (0 findings on first run).
Full details in the PR body.
Jakob Wennberg