TypeScript Tooling Migration Guide for migrating or upgrading TypeScript tooling in the Phoenix monorepo. This skill covers upgrading core dependencies (TypeScript, React), switching tools (linters, formatters, bundlers), and managing breaking changes across and directories. Monorepo Structure Phoenix has two TypeScript project directories that must stay in sync: | Directory | Purpose | Package Manager | |-----------|---------|-----------------| | | React/TypeScript frontend (main Phoenix UI) | pnpm | | | TypeScript packages monorepo (phoenix-client, phoenix-evals, etc.) | pnpm (workspace) |…