endurance-coach-build-and-envlisted

# endurance-coach-build-and-env **Use this when** you are bringing the coach up from zero — cloning, installing, getting `typecheck + test` green, connecting AI Endurance (AIE) OAuth, optionally enabling Garmin, or unwedging a toolchain/account problem that blocks setup. **Don't use this when** the app already builds and you need to *run/serve/ship* it (see `endurance-coach-run-and-operate`), look up an env var or add a flag (see `endurance-coach-config-and-flags`), or triage a live data/OAuth failure on a running instance (see `endurance-coach-debugging-playbook`). Jargon, defined once: - **AIE** = AI Endurance, the ML coaching platform this app reads its plan/thresholds/recovery from. The **data spine** — required. - **MCP** = Model Context Protocol, the tool-call transport the app uses to reach AIE and Garmin. - **OAuth** = the browser-based login that mints and caches AIE access tokens. - **tsx** = the TypeScript runner this project uses instead of compiling first; `npm run *` scripts are `tsx src/…`. - **ESM / Node16** = ES modules with Node16 module resolution (see `tsconfig.json`) — imports use `.js` extensions even for `.ts` files. `"type": "module"` in `package.json`. - **uvx** = the one-shot runner from Astral's `uv` Python tool-manager, used only to launch the Garmin community connector. > All commands below are copy-pasteable from anywhere — they `cd` into the repo first. The repo lives at > `/Users/maxeskell/dev/personal-training-app` on the author's M