coryhouse / coryhouse/react-restaurant-scriptpro
Refactor cart to useReducer
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enhancement
phase-5-cart
- Dominant language
- TypeScript
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Description
## Goal
Refactor the cart's ad-hoc setters into a single `useReducer` with `ADD_ITEM`, `REMOVE_ITEM`, `UPDATE_QUANTITY`, and `CLEAR` actions. The point: when state transitions are coordinated, reducers beat multiple `useState` calls.
## Acceptance criteria
- [ ] Cart state managed by `useReducer`
- [ ] Action types fully typed (discriminated union)
- [ ] All existing cart behavior unchanged
- [ ] Playwright cart test still passes
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