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/016-build-and-exports-validation.md

@@ -0,0 +1,45 @@
+---
+id: build-and-exports-validation
+name: Validate build, package.json exports, and tsup config for all adapters
+status: pending
+depends_on: []
+scope: narrow
+risk: low
+impact: component
+level: implementation
+---
+
+## Description
+
+Verify that the build pipeline correctly produces dual ESM + CJS output with declarations for all entry points, and that `package.json` exports map and `tsup.config.ts` entries are consistent.
+
+Currently only `src/index.ts` and `src/event-target-redis.ts` are entry points. As new adapters are added, each needs:
+1. An entry in `tsup.config.ts` entry array
+2. A sub-path export in `package.json` exports map (ESM + CJS + declarations)
+3. A barrel re-export in `src/index.ts`
+
+This task validates the current setup and serves as a checklist item for each adapter task. It can be done early and re-verified as adapters are added.
+
+## Acceptance Criteria
+
+- [ ] `npm run build` produces correct output for existing entry points (index, event-target-redis)
+- [ ] `npm run lint` (tsc --noEmit) passes
+- [ ] `package.json` exports map has correct ESM/CJS/dts paths for each entry point
+- [ ] `tsup.config.ts` lists all current entry points
+- [ ] `src/index.ts` re-exports everything from all modules
+- [ ] Peer dependencies and peerDependenciesMeta are correct
+- [ ] No runtime dependencies (Repeater is inlined)
+
+## References
+
+- docs/architecture/build-distribution.md
+- package.json
+- tsup.config.ts
+
+## Notes
+
+> To be filled by implementation agent
+
+## Summary
+
+> To be filled on completion