usage-board

Use when writing, refactoring, reviewing, or cleaning code in this project to enforce the repository's code convergence and abstraction boundary rules. Applies to duplicate logic, fake abstractions, thin wrappers, repeated types, repeated UI/state/API/style/config/test/docs structures, pseudo-architecture, uncontrolled complexity, mirror constants, mirror variables, mirror function bodies, derived mirrors, and intermediate mirror constants.

Use when refactoring or cleaning the usage-board project, especially to remove unused functions/constants including unused exports, reduce repeated logic without adding trivial wrapper functions, improve readability, and preserve token/cost/session data accuracy. Applies to Vue, Nuxt, shared analytics utilities, websocket module loading, and dashboard aggregation code in this repository.