# Task ID: 152

**Title:** Agent membership routes

**Status:** pending

**Dependencies:** 120

**Priority:** medium

**Description:** Create API endpoints for managing agent-project memberships

**Details:**

Add to existing agent routes or create new file:
1. GET /api/v1/agents/:name/projects - list projects agent belongs to
2. POST /api/v1/agents/:name/projects/:project - add membership { role?, llm? }
3. DELETE /api/v1/agents/:name/projects/:project - remove membership
4. GET /api/v1/projects/:name/agents - list agents in project
5. Keep Agent.projectId in sync when membership added/removed (backward compat for one release)
6. Follow existing route patterns

**Test Strategy:**

Route tests: test add membership creates junction row, test remove deletes it, test list returns correct memberships.