configurable-api-base-url

# Configurable API Base URL (Frontend) Use a **single source of truth** for the API base URL in the frontend so port/host changes don't require editing many files. ## Steps 1. **Add** `VITE_API_URL` (or equivalent) to **`.env.example`** with a placeholder (e.g. `http://localhost:3000`). 2. **Create a shared client** (e.g. `src/utils/api.ts` or `api.ts`) that uses `import.meta.env.VITE_API_URL` for the base URL. 3. **Replace** direct `fetch`/axios calls with this client so all requests go through one place. 4. **Do not create or modify `.env`** in the repo. Document that users should copy `.env.example` to `.env` for local use. ## Do Not - Hardcode the host/port in multiple files. - Create or commit `.env` (only `.env.example` and docs). ## Integration - Works with `environment-files` skill (no `.env` in repo, only `.env.example`).