Decompose architecture into atomic, dependency-ordered tasks

19 tasks covering core testing, Redis hardening, WebSocket client/server
adapters, Worker adapter, and final review gates. Iroh adapters are tracked
as a deferred placeholder blocked on the @alkdev/iroh fork.

Phases: core validation → Redis hardening → review gate → WebSocket
adapters → review gate → Worker adapter → review gate → final validation.

tasks/013-worker-adapter-tests.md

@@ -0,0 +1,46 @@
+---
+id: worker-adapter-tests
+name: Write tests for Worker event target adapter
+status: pending
+depends_on: [worker-adapter-implementation]
+scope: moderate
+risk: medium
+impact: component
+level: implementation
+---
+
+## Description
+
+Write tests for the Worker event target adapter(s). Testing Workers is non-trivial because it requires creating actual Worker instances or mocking the `postMessage`/`onmessage` API.
+
+Test scenarios from the architecture doc:
+1. Main → Worker send — dispatchEvent from main posts message to worker
+2. Worker → Main send — dispatchEvent from worker posts message to main
+3. Bidirectional — both sides can subscribe and publish
+4. Topic scoping — type:id topics correctly formed
+5. Envelope round-trip — full envelope survives serialization
+6. Worker termination — cleanup when worker exits
+
+## Acceptance Criteria
+
+- [ ] `test/event-target-worker.test.ts` exists and passes
+- [ ] Mock strategy for Worker environment established (actual workers, vitest worker threads, or mocked postMessage)
+- [ ] Test: host dispatchEvent posts message to worker via postMessage
+- [ ] Test: worker thread dispatchEvent posts message to parent
+- [ ] Test: bidirectional communication works
+- [ ] Test: type:id topic scoping works correctly
+- [ ] Test: EventEnvelope round-trips through serialization
+- [ ] Test: addEventListener and removeEventListener work on both sides
+
+## References
+
+- docs/architecture/event-targets/worker.md (Test Plan section)
+- src/event-target-worker.ts
+
+## Notes
+
+> To be filled by implementation agent
+
+## Summary
+
+> To be filled on completion