* feat(world-boss): barebones API
* fix(world): use Express respond for better JSON
* fix(api): respond with code 200
* feat(content): canonical Dysheartener desc and Rage
* fix(world-boss): enable progress
* WIP(test): world state API
* WIP(test): refactor world boss setup
* WIP(test): better expectations
* fix(test): more expect polishing
* feat(event): server side World Boss
* fix(strings): accidental deletion
* fix(content): include encouragement after Rage
* refactor(world-boss): address comments