# Quickstart: Remove Combatant

**Feature**: 003-remove-combatant

## Prerequisites

- Node.js 18+, pnpm
- Repository cloned, `pnpm install` run

## Development

```bash
git checkout 003-remove-combatant
pnpm test:watch                    # Run tests in watch mode during development
pnpm --filter web dev              # Dev server at localhost:5173
```

## Verification

```bash
pnpm check                         # Must pass before commit (format + lint + typecheck + test)
```

## Implementation Order

1. **Domain**: Add `CombatantRemoved` event type → implement `removeCombatant` pure function → tests
2. **Application**: Add `removeCombatantUseCase` → re-export
3. **Web**: Add `removeCombatant` to `useEncounter` hook → add remove button in `App.tsx`

## Key Files

| Layer | File | Purpose |
|-------|------|---------|
| Domain | `packages/domain/src/remove-combatant.ts` | Pure removal function |
| Domain | `packages/domain/src/events.ts` | CombatantRemoved event type |
| Domain | `packages/domain/src/__tests__/remove-combatant.test.ts` | Acceptance tests |
| Application | `packages/application/src/remove-combatant-use-case.ts` | Use case orchestration |
| Web | `apps/web/src/hooks/use-encounter.ts` | Hook integration |
| Web | `apps/web/src/App.tsx` | UI remove button |