# Task ID: 123

**Title:** Epic repository layer

**Status:** pending

**Dependencies:** 117

**Priority:** medium

**Description:** Create EpicRepository in src/mcpd/src/repositories/ following existing repository patterns

**Details:**

Create src/mcpd/src/repositories/epic.repository.ts:
1. Export EpicRepository class following agent.repository.ts pattern
2. Methods: create, findById, findByName, findByProjectId, findAll, update, delete
3. update must increment version (optimistic concurrency)
4. Include relations in queries where needed (epicTasks, project, owner)
5. Add type exports for CreateEpicData, UpdateEpicData
6. Register in repository index file

**Test Strategy:**

Unit tests in src/mcpd/tests/repositories/: test CRUD operations, test optimistic concurrency version increment, test findByProjectId filtering, test cascade behavior.