The court as story engine
The fairy court in this genre is not a setting but a machine: its rules, its hierarchies, and its specific logic generate the conflicts that drive the story. Designing the court as a story engine means working out the rules before the story begins and then committing to them. What constitutes a binding agreement in your court? What speech acts are forbidden, and what happens when they are violated? How is power demonstrated and how is it transferred? Who is allied with whom and what does each alliance cost? These rules need to be specific enough to create genuine dilemmas for your characters: situations where every available option is costly, where the right choice from a human perspective is wrong from the court's perspective, where the protagonist must navigate a system they do not fully understand with tools that were not designed for it.