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# Implementation Summary

**Session ID**: `phase05-session03-web-room-lifecycle-and-state-store` **Package**: `apps/web` **Completed**: 2026-05-30 **Duration**: 3.5 hours

***

## Overview

This session replaced the disabled War Room web stub with a real local-first Worker lifecycle surface. The web app now has a bounded Worker client, bounded browser hint persistence, a Zustand lifecycle store, accessible panel controls for create/join/connect/disconnect, and focused tests for the client, store, and UI states.

The implementation keeps the Worker optional. When no Worker URL is configured the cockpit remains usable in local-only mode, and all stored browser state is limited to safe hints needed to re-enter a room context.

***

## Deliverables

### Files Created

| File                                     | Purpose                                                                                                   | Lines |
| ---------------------------------------- | --------------------------------------------------------------------------------------------------------- | ----- |
| `apps/web/src/lib/warRoomClient.ts`      | Worker REST and socket client boundary, URL normalization, timeout handling, and safe error mapping.      | \~220 |
| `apps/web/src/lib/warRoomIdentity.ts`    | Bounded Worker URL and participant hint persistence with malformed-storage recovery.                      | \~140 |
| `apps/web/src/lib/warRoomUi.ts`          | Lifecycle copy and state helper logic for the panel and tests.                                            | \~120 |
| `apps/web/src/store/useWarRoomStore.ts`  | Zustand lifecycle store for room create/join/connect/disconnect flows, hints, errors, and socket cleanup. | \~300 |
| `apps/web/tests/warRoomTestUtils.ts`     | Shared test helpers for mocked fetch, WebSocket, and storage reset.                                       | \~120 |
| `apps/web/tests/warRoomClient.test.ts`   | Worker client success and failure coverage.                                                               | \~180 |
| `apps/web/tests/warRoomIdentity.test.ts` | Persistence and reset coverage.                                                                           | \~150 |
| `apps/web/tests/warRoomStore.test.ts`    | Lifecycle state, duplicate guard, and socket cleanup coverage.                                            | \~240 |
| `apps/web/tests/WarRoomPanel.test.tsx`   | Accessible panel state and flow coverage.                                                                 | \~260 |

### Files Modified

| File                                       | Changes                                                                               |
| ------------------------------------------ | ------------------------------------------------------------------------------------- |
| `apps/web/src/components/WarRoomPanel.tsx` | Replaced the stub with accessible lifecycle controls and bounded status copy.         |
| `apps/web/src/lib/cockpitShell.ts`         | Updated War Room surface metadata from deferred stub copy to optional lifecycle copy. |
| `apps/web/README_web.md`                   | Documented the Phase 05 web lifecycle boundary and deferred follow-up sessions.       |
| `apps/web/tests/CockpitShell.test.tsx`     | Updated shell expectations for the new surface state.                                 |
| `apps/web/tests/cockpitShell.test.ts`      | Updated pure shell metadata expectations.                                             |

***

## Technical Decisions

1. **Keep the Worker optional**: the panel must remain usable with no Worker URL so local cockpit workflows are not blocked.
2. **Persist only bounded hints**: only Worker URL and participant identity hints are stored, and room events or sensitive local data are not persisted.
3. **Treat socket lifecycle as scoped**: sockets are closed on disconnect, reset, and teardown so stale connections do not leak across re-entry.

***

## Test Results

| Metric   | Value |
| -------- | ----- |
| Tests    | 38    |
| Passed   | 38    |
| Failed   | 0     |
| Coverage | N/A   |

Focused checks recorded in the implementation notes:

* `npx biome format --write ...`
* `npx biome lint ...`
* `npm --workspace apps/web run typecheck`
* `npx vitest run apps/web/tests/warRoomIdentity.test.ts apps/web/tests/warRoomClient.test.ts apps/web/tests/warRoomStore.test.ts apps/web/tests/WarRoomPanel.test.tsx apps/web/tests/cockpitShell.test.ts apps/web/tests/CockpitShell.test.tsx`

***

## Lessons Learned

1. Helper-owned copy keeps the panel state rendering honest and prevents raw Worker payloads from reaching the UI.
2. Revalidating room state before connect is the safest way to avoid stale socket transitions.
3. Cleanup on reset and teardown is easier to reason about when the socket is owned by the store rather than the component.

***

## Future Considerations

Items for future sessions:

1. Leader approval and rejection UX for pending participants.
2. Presence, reconnect, catch-up, and leave behavior.
3. Redacted federation and cockpit integration for the remaining Phase 05 scope.

***

## Session Statistics

* **Tasks**: 22 completed
* **Files Created**: 9
* **Files Modified**: 5
* **Tests Added**: 4
* **Blockers**: 0 resolved


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