S00-005: Approve storage design after independent transaction checks

Changes: Accept ADR 0004 and record independent S00-005 review, experiment status and handoff; preserve explicit native browser and durability limitations.
Validation: Fresh-cache npm ci and npm run check passed on Node 24.21.0/npm 11.19.0; exact lock pins, HTTPS/SHA512, installed license texts and runtime refusal checks passed. make check passed 72 tooling tests. Scoped diff and whitespace reviewed; native browser quota and process restart were not tested.

Task: S00-005
Agent: auto-qa-4078580caf39
Role: qa
Action: review
Status: done

Task title: Выбрать IndexedDB wrapper и migration policy

experiments/0004-storage-design/README.md

@@ -1,7 +1,7 @@
 # Storage design experiment (S00-005)
 
 Synthetic fixtures only. No app adapter, shared contract, secrets or real messages.
-ADR: `docs/decisions/0004-storage-design.md` (proposed pending independent QA).
+ADR: `docs/decisions/0004-storage-design.md` (accepted bounded design; see independent QA evidence).
 `RECOVERY.md` preserves the earlier interruption inventory; its missing-output
 notes are historical, superseded by this task's code and evidence.