S00-027: Approve registry connectivity after independent HTTPS checks

Changes: Accept the bounded S00-027 connectivity record and add independent security review evidence and handoff.
Validation: Fresh-cache control, candidate and pinned npm queries exited 0; fresh HTTPS artifact SHA512 SRI, size and SHA256 matched. make check exited 0 with 72 tests; executor patch/message, owner confirmation, scope and whitespace checked. No crypto/backend or distribution acceptance.

Task: S00-027
Agent: auto-security-ccce71646176
Role: security
Action: review
Status: done

Task title: Restore approved npm registry connectivity for the OMEMO2 backend investigation

state/evidence/S00-027-review.md

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+# S00-027 independent security review
+
+Reviewer: auto-security-ccce71646176 (security). Executor: auto-ci-cd-40ae46e8efe7 (ci-cd).
+Date: 2026-10-15. Decision: APPROVE connectivity record only.
+
+Input: assigned card/packet, required startup/workflow/TESTING/crypto/ADR index reads, both blocker reports, exact ENC-003/009/011, accepted ADR 0000/0001 and all direct dependency evidence/reviews/handoffs. Output: accepted connectivity metadata and this independent report. Focused acceptance: actual control/candidate registry responses, pinned HTTPS download with matching SRI, no policy bypass or crypto/backend acceptance.
+
+## Patch and boundaries
+
+Read implementation commit 0b60f3d84e860cb71ae783d820ebd726bbad76ad and external-input checkpoint 927728daf1f8661ba05114800a36e0dfe5066e2f. Executor message accurately describes the document, live probes, checks and limits. The implementation changes only the allowed connectivity document plus workflow/generated artifacts. Initial working tree was clean. Revision 74 of canonical history confirms approved sandbox outbound access while retaining configured proxy, TLS and filesystem restrictions; supplied prior caches/archives were not reused.
+
+No credentials, private proxy details or real conversations appear in the task artifacts. Metadata was treated as data; pinned URL was asserted to the official HTTPS tarball before retrieval and final URL remained identical. TLS verification stayed enabled (npm strict-ssl=true, Python default SSL context). No install, extraction, package execution, custom crypto, system/network/Git configuration change, plaintext fallback, immutable spec or shared contract edit occurred. Host Node/npm were used solely for metadata connectivity, with accepted build pins unchanged.
+
+## Independent commands and actual results
+
+- `python3 scripts/tasks.py resume --agent auto-security-ccce71646176`, `show S00-027`, `packet S00-027 --agent auto-security-ccce71646176`: exit 0 each. Reviewer did not claim; owner differs and direct prerequisites are done.
+- Read-only git log/show/status and canonical history inspection: exit 0; patch and executor message agree.
+- `node --version`: exit 0.
+- `npm --version`: exit 0.
+- `npm config get strict-ssl`: exit 0.
+- `npm view @signalapp/libsignal-client version --json --fetch-retries=0 --fetch-timeout=15000 --cache=/tmp/luma-s00-027-review-4ngu6s8g/cache --strict-ssl=true`: exit 0.
+- `npm view libomemo.js version license dist.integrity dist.tarball --json --fetch-retries=0 --fetch-timeout=15000 --cache=/tmp/luma-s00-027-review-4ngu6s8g/cache --strict-ssl=true`: exit 0.
+- `npm view libomemo.js@3.0.0 version license dist.integrity dist.tarball --json --fetch-retries=0 --fetch-timeout=15000 --cache=/tmp/luma-s00-027-review-4ngu6s8g/pinned-cache --registry=https://registry.npmjs.org/ --strict-ssl=true`: exit 0.
+
+Python tempfile/subprocess/urllib/ssl/hashlib/base64 wrapper: exit 0. Fresh root `/tmp/luma-s00-027-review-4ngu6s8g`; cache absent before first query, separate pinned-cache also new. Control returned 0.105.0; candidate and pinned candidate returned 3.0.0, GPL-3.0 and the documented official tarball/SRI. No EAI_AGAIN or E404. Wrapper asserted metadata version and exact public HTTPS URL, required HTTP 200 and unchanged final URL, downloaded using ssl.create_default_context(), computed SHA512 SRI and asserted equality with registry metadata. Archive and public verification.json were saved only under the fresh temporary root; no package code ran.
+
+- Archive size: 1,061,939 bytes.
+- SHA512 SRI: `sha512-B4he9DOS+1LQrut+b2xjOjuSkKMAkZGes7ckB5JgVk/EHVNyxLIHx6NvQ3eJVaT1XeNJaWZBonXw3Nl5YKEbig==`.
+- SHA256: `be30116eca7014a35b3372dc1270d462cf5392ae6affc92c4f4778d003e7bbf8`.
+
+These results match the executor record exactly.
+
+- `make check > /tmp/luma-s00-027-review-check.log 2>&1`: exit 0, 72 tests in 18.796s, OK. Foundation integrity only.
+- `git diff --check`: exit 0 before report; final authored metadata/diff inspected for whitespace and scope before approval.
+
+## Acceptance and limits
+
+All three card acceptance conditions pass independently. Registry SRI proves agreement between retrieved bytes and registry metadata, not independent provenance, vulnerability clearance, license distribution approval or crypto suitability. Browser/WASM/worker execution, OMEMO2/SCE mapping, interoperability, audited engine/persistence compatibility and application readiness were not checked or accepted. Existing crypto ADR and experiments remain unchanged. Approval permits only S00-022 to return to the queue for a fresh executor through CLI workflow. Coordinator must commit this review transition; reviewer ends after approve.