User API

GET /api/user/profile

{
  "id": "user-uuid",
  "email": "user@example.com",
  "name": "John Doe",
  "avatar_url": "https://...",
  "created_at": "2024-01-01T00:00:00Z",
  "subscription": {
    "status": "active",
    "product_id": "prod_standard",
    "period_end": "2024-02-01T00:00:00Z"
  }
}

PATCH /api/user/profile

{
  "name": "John Smith",
  "email": "john.smith@example.com",
  "avatar_url": "https://..."
}

POST /api/user/password

{
  "current_password": "old-password",
  "new_password": "new-secure-password"
}

{
  "success": true,
  "message": "Password updated successfully"
}

GET /api/user/credits

{
  "total_allocation": 10000,
  "credits_used": 3500,
  "credits_remaining": 6500,
  "percentage_used": 35,
  "usage_summary": {
    "parse": 1500,
    "extract": 1200,
    "chat": 500,
    "generate": 300
  },
  "period": {
    "start": "2024-01-01T00:00:00Z",
    "end": "2024-02-01T00:00:00Z"
  },
  "subscription": {
    "status": "active",
    "plan": "Standard",
    "renews_at": "2024-02-01T00:00:00Z"
  }
}