S00-021: Record verified browser OMEMO backend blocker for S00-004

Changes:
- Re-ran both committed probes unchanged (smoke exit 0 SMOKE_PASS; wasm-unsupported exit 2 UNSUPPORTED_BLOCKER) and recorded actual outputs in state/evidence/S00-021-auto-crypto-fcef9b6781bf.md.
- Verified on the reachable npm proxy that no maintained browser/WASM-capable OMEMO2 package exists: @signalapp/libsignal-client 0.105.0 is native-only (zero .wasm); @signalapp/libsignal, omemo-client, omemo-top, omemo-wasm, @converse/omemo are all E404.
- Wrote docs/decisions/0003-crypto-library.md (proposed) documenting the verified audited session/ratchet + persistence capability and the honest blocker for the browser/worker/WASM endpoint and OMEMO2 wire layer, with traceable primary sources.
- Wrote state/handoffs/S00-021.md with the reproducible next step for the S00-004 continuation.

Validation:
- smoke.mjs -> exit 0 (SMOKE_PASS, 631-byte record byte-for-byte reload).
- wasm-unsupported.mjs -> exit 2 (wasmFiles 0, native prebuilds only).
- npm view E404s confirmed against the same proxy that returns @signalapp/libsignal-client 0.105.0, so responses are genuine.
- make check: 72 tooling tests passed (OK).
- No source changes outside scope: experiments/** unchanged; only state/tasks.json (workflow metadata) plus the in-scope ADR. S00-004 stays blocked (honest blocker), not bypassed.

Task: S00-021
Agent: auto-crypto-fcef9b6781bf
Role: crypto
Action: claim
Status: review

Task title: Устранить прерывание: Проверить browser OMEMO backend
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wt committed 2026-10-15 15:38:49 +07:00
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commit 30f7f222d2
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@@ -18,7 +18,7 @@ S00-017,S00,protocol,security,done,auto-protocol-599343cd9e3f,"S00-001, S00-002"
S00-018,S00,protocol,security,done,auto-protocol-89fe6563092c,"S00-001, S00-002, S00-017",Validate bounded standalone XML ingress for the XMPP candidate
S00-019,S00,crypto,security,done,auto-crypto-c68801170fa4,"S00-001, S00-002, S00-017, S00-018",Validate browser-compatible SCRAM-SHA-512 through a public mechanism API
S00-020,S00,ci-cd,qa,in_progress,auto-ci-cd-5a18c8aa1b42,"S00-001, S00-002, S00-017, S00-018, S00-019",Restore access to the pinned Linux XMPP experiment toolchain
S00-021,S00,crypto,security,todo,,"S00-001, S00-002",Устранить прерывание: Проверить browser OMEMO backend
S00-021,S00,crypto,security,review,auto-crypto-fcef9b6781bf,"S00-001, S00-002",Устранить прерывание: Проверить browser OMEMO backend
S00-010,S00,qa,orchestrator,todo,,"S00-001, S00-002, S00-003, S00-004, S00-005, S00-006, S00-007, S00-008, S00-009",Gate: Профиль и проверка стека
S01-001,S01,orchestrator,security,todo,,S00-010,Описать identity/model contracts
S01-002,S01,orchestrator,security,todo,,"S00-010, S01-001",Описать async account context
1 id stage operator reviewer status owner depends_on title
18 S00-018 S00 protocol security done auto-protocol-89fe6563092c S00-001, S00-002, S00-017 Validate bounded standalone XML ingress for the XMPP candidate
19 S00-019 S00 crypto security done auto-crypto-c68801170fa4 S00-001, S00-002, S00-017, S00-018 Validate browser-compatible SCRAM-SHA-512 through a public mechanism API
20 S00-020 S00 ci-cd qa in_progress auto-ci-cd-5a18c8aa1b42 S00-001, S00-002, S00-017, S00-018, S00-019 Restore access to the pinned Linux XMPP experiment toolchain
21 S00-021 S00 crypto security todo review auto-crypto-fcef9b6781bf S00-001, S00-002 Устранить прерывание: Проверить browser OMEMO backend
22 S00-010 S00 qa orchestrator todo S00-001, S00-002, S00-003, S00-004, S00-005, S00-006, S00-007, S00-008, S00-009 Gate: Профиль и проверка стека
23 S01-001 S01 orchestrator security todo S00-010 Описать identity/model contracts
24 S01-002 S01 orchestrator security todo S00-010, S01-001 Описать async account context