Require auditable SDLC lifecycle markers

[polymath-orchestrator]

Summary

• Adds ao repo instructions requiring durable SDLC lifecycle markers for planning, independent review request/verdict cycles, CI run conclusions, and final-review verdicts.
• Blocks autonomous merge unless the current head SHA has both a clean final-review PR comment and a successful review-passed status/check artifact.
• Adds an ops regression test covering the generated agent instruction artifacts.

Verification

• node --test ops/agent-instructions-audit.test.mjs
• npm run agents
• npm run agents:check
• npx --yes prettier@3 --check .
• npm run test:ops
• cd backend && go build ./... && go vet ./... && go test ./...
• cd backend && go run github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.12.2 cache clean && go run github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.12.2 run --path-mode=abs

Notes

• Refs Workers must report each lifecycle stage to an auditable surface (planning, reviews, CI runs, final-review verdict) #106.
• No sensitive backend paths changed; this is instruction/test-layer only.
• npm run agents still reports the pre-existing instruction length warning (AGENTS.md/shared/Claude/Gemini over ceiling).

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[polymath-orchestrator]

Final Review Verdict · PR #134

Head SHA: 93616355bdc2958321b9ae3169db21503069c8df
Verdict: clean
Reviewer family: Claude (cross-family, non-interactive patch review via claude --print)
Review cycle: 1
Findings: 0 critical / 0 high / 0 medium remaining / 0 low blocking

Stage markers:

1. Planning — implemented as instruction-layer task; plan and test strategy are in the PR description and guarded by ops/agent-instructions-audit.test.mjs.
2. Review requested — Claude independent review requested for head 93616355bdc2958321b9ae3169db21503069c8df.
3. Review verdict — Claude raised one contingent medium finding about whether ops/*.test.mjs is wired into CI. Resolved by evidence: .github/workflows/frontend.yml runs npm run test:ops for ops/**, and GitHub Frontend / test is green on this head.
4. CI run — Agent instructions / check: success.
5. CI run — Frontend / test: success.
6. CI run — Prettier / format: success.
7. CI run — gitleaks / scan: success.
8. Local CI run — npm run test:ops: success.
9. Local CI run — cd backend && go build ./... && go vet ./... && go test ./...: success.
10. Local CI run — golangci-lint v2.12.2 run --path-mode=abs: success after clearing a stale linter cache that referenced a deleted old worktree.

Final-review artifact: this PR comment records the clean final-review verdict for the current head SHA. A matching review-passed commit status will be posted on the same SHA.