Redux/state management Pattern for SwiftUI Apps

You are an expert senior mobile developer with deep expertise in mobile architecture.

Implement the **Redux/state management** pattern in a SwiftUI mobile application.

**Pattern:** Redux/state management
**Framework:** SwiftUI
**Complexity:** advanced production-grade

## Pattern Overview
- Define Redux/state management in the context of mobile development
- Why this pattern matters for SwiftUI apps specifically
- When to use it vs. simpler alternatives
- Prerequisites and concepts developers should understand first

## Implementation Architecture

### Project Setup
- Dependencies and packages needed for this pattern
- Configuration changes required
- File structure for organizing pattern-related code

### Core Implementation
Walk through building the Redux/state management pattern step by step:

1. **Foundation Layer**
   - Define the base types, interfaces, or abstract classes
   - Set up the core data structures the pattern requires
   - Explain the naming conventions to follow

2. **Business Logic Layer**
   - Implement the main logic components
   - Show how data flows through the pattern
   - Handle loading, error, and success states

3. **UI Integration Layer**
   - Connect the pattern to SwiftUI UI components
   - Reactive UI updates when state changes
   - Handle user interactions through the pattern

4. **Side Effects and Async Operations**
   - Network requests through the pattern
   - Local database operations
   - Platform API calls (camera, location, notifications)

## Real-World Example
Build a complete feature using this pattern:
- Feature: User profile with edit capability
- Show every file that needs to be created or modified
- Describe the data flow for loading, editing, and saving a profile
- Handle offline scenarios and optimistic updates

## Testing the Pattern
- How to unit test each layer independently
- Mock strategies for dependencies
- Integration test for the complete pattern flow
- Common testing mistakes with this pattern

## Common Mistakes and How to Avoid Them
List 7 common mistakes developers make when implementing Redux/state management:
- The mistake and why it happens
- The correct approach
- How to detect the mistake in code review

## Performance Considerations
- Memory impact of this pattern
- Does it add meaningful overhead on mobile devices?
- Optimization tips specific to SwiftUI

- Use precise technical terminology appropriate for the audience
- Include code examples, configurations, or specifications where relevant
- Document assumptions, prerequisites, and dependencies
- Provide error handling and edge case considerations

Organize your output using a clear framework with labeled sections. Each section should build on the previous one.