Production builds

The typical way to deploy production node applications is via a production builds. This corresponds to neutrino's docs and common webpack practices. Once that's done, the files should be possible to serve with a static webserver. As of currently, this does not work: when trying to authenticate against an instance, the callback is missing (/oauth-callback returns 404). This is the contents of my build directory as of current git HEAD:

352428b1102bfe02635c031fca4288d9.2286f38a6519a583fe99.js
7813cc3ecfbae7215b91ce1e17da0c1c.206b2b3a6054f2fa80f4.js
index.238b99acd95920c35a38.js
index.b95cea4932a6d4d36d481525208a91f3.css
index.html
runtime.ff533a1895c09b63a029.js

Most of the hashes are probably irrelevant, but a lack of an oauth-callback.html is notable.