How do I get my ember.js app to import modules installed from bower or npm

I'm pretty new to some of this stuff and I feel like I must just be missing something simple. I have a very basic Ember.js app that I created with the CLI tool flowing the guide. The code is at http://ift.tt/1MyDlXl

It has a couple of routes and components, and a single third-party dependency, particle-api-js. I installed it twice, via bower and npm, and I'm importing it in one of my components like so:

import particle from 'particle-api-js';

I start up my server with ember serve and it builds successfully. I then open my browser to http://localhost:4200/login where I load the component and it gives me the following error in my console:

Error: Could not find module `particle-api-js` imported from `particle-webhook-manager/components/login-form`

So, my main question is: what am I doing wrong here/how do I make it work?

My secondary question is: why did it "build" successfully and then throw a runtime error for the missing module - shouldn't it have found that in the build stage?