# task-011

status: done

## goal
Implement DefaultRouterRepository using EventReplayer<RouterState> to rebuild RouterState from the event store for a given session.

## target artifact
core/router/src/main/kotlin/com/correx/core/router/RouterRepository.kt

## execution steps
- Create `RouterRepository.kt` containing:
  - `interface RouterRepository` with `fun getRouterState(sessionId: SessionId): RouterState`
  - `class DefaultRouterRepository(private val replayer: EventReplayer<RouterState>) : RouterRepository`
  - `getRouterState` delegates to `replayer.rebuild(sessionId)`
- No suspension needed — `EventReplayer.rebuild()` is non-suspend and operates purely in-memory from `EventStore.read()`
- Follow the exact same pattern as `DefaultToolRepository` in `core:tools`

## changed artifacts
- `core/router/src/main/kotlin/com/correx/core/router/RouterRepository.kt` (new)

## blockers
- None

## notes
- Epic-14 spec proposes `suspend fun getRouterState(...)`, but `EventReplayer.rebuild()` is non-suspend (reads from EventStore in-memory). Following the `DefaultToolRepository` precedent (which mirrors this same pattern).
- Path in epic-14 mentions `state/` subdirectory but the task artifact and actual codebase structure place files directly in `core/router/`.