Get Objective

{
  "objective": {
    "id": "obj-abc-123",
    "title": "Launch email marketing campaign",
    "description": "Build and deploy 3 automated email sequences",
    "status": "active",
    "progress": 45,
    "success_criteria": [
      { "criterion": "3 sequences live", "met": true },
      { "criterion": "500 emails sent", "met": false }
    ],
    "drive": "Scale inbound leads by 3x",
    "created_at": "2026-01-10T09:00:00Z"
  },
  "tasks": [
    { "id": "task-def-456", "title": "Write sequence 1", "status": "done" },
    { "id": "task-ghi-789", "title": "Write sequence 2", "status": "in_progress" }
  ]
}