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/007-websocket-client-tests.md

@@ -0,0 +1,52 @@
+---
+id: websocket-client-tests
+name: Write tests for WebSocket client event target adapter
+status: pending
+depends_on: [websocket-client-adapter]
+scope: moderate
+risk: medium
+impact: component
+level: implementation
+---
+
+## Description
+
+Write tests for `createWebSocketClientEventTarget`. Since WebSocket is a browser API, we need to mock `WebSocket` in tests. Use a lightweight mock or `vitest` mocking to simulate WebSocket behavior.
+
+Test scenarios from the architecture doc:
+1. Send path — dispatchEvent serializes envelope and calls ws.send
+2. Receive path — ws.onmessage parses envelope, creates CustomEvent, dispatches to listeners
+3. Topic scoping — type:id topics correctly formed from envelope
+4. Subscription forwarding — addEventListener sends __subscribe on first listener for a topic
+5. Subscription dedup — multiple addEventListener for the same topic sends only one __subscribe
+6. Unsubscription forwarding — removeEventListener sends __unsubscribe when no listeners remain
+7. Connection close — ws.onclose behavior
+8. Reconnection — new connection + new event target + re-subscribe restores subscriptions
+9. Multiple listeners — multiple addEventListener on same topic receives events correctly
+
+## Acceptance Criteria
+
+- [ ] `test/event-target-websocket-client.test.ts` exists and passes
+- [ ] Mock strategy for WebSocket is established (vitest mock, mock WebSocket class, or similar)
+- [ ] Test: dispatchEvent sends JSON-stringified envelope via ws.send
+- [ ] Test: addEventListener with first listener for a topic sends `__subscribe` control event
+- [ ] Test: multiple addEventListener for same topic sends only one `__subscribe`
+- [ ] Test: removeEventListener with last listener sends `__unsubscribe`
+- [ ] Test: removeEventListener with remaining listeners does NOT send `__unsubscribe`
+- [ ] Test: malformed JSON from server is silently ignored
+- [ ] Test: control events received from server are silently ignored
+- [ ] Test: ws.onmessage correctly dispatches to local listeners with type:id topic
+- [ ] Test: multiple listeners on same topic all receive events
+
+## References
+
+- docs/architecture/event-targets/websocket-client.md (Test Plan section)
+- src/event-target-websocket-client.ts
+
+## Notes
+
+> To be filled by implementation agent
+
+## Summary
+
+> To be filled on completion