Zustand Store Architecture

I need help setting up Zustand for state management in my React app.

**Application State Needs:**
```
[describe your state structure]
```

**Actions Required:**
[List the actions/mutations needed]

**Async Operations:**
[Describe API calls or async actions]

**Persistence:**
- LocalStorage: [yes/no]
- Session persistence: [yes/no]

**Requirements:**
- TypeScript: [yes/no]
- DevTools integration: [yes/no]
- Multiple stores: [yes/no]

Please provide:
1. Store definition with TypeScript
2. Actions and selectors
3. Async action patterns
4. Middleware setup (persist, devtools)
5. Store slicing pattern if needed
6. Component usage examples
7. Testing approach