Document comprehensive error handling strategies

[leogdion]

Description

Create comprehensive documentation for error handling strategies across MistKit, including all error types, recovery patterns, and best practices.

Background

PR #105 review highlighted the need for comprehensive error handling documentation. CloudKitError and TokenManagerError types need complete documentation with handling strategies.

Error Types to Document

1. CloudKitError

• All error cases and meanings
• HTTP status code mappings
• CloudKit service error responses
• Network and connectivity errors

2. TokenManagerError

• Authentication failure scenarios
• Token expiration handling
• Storage and retrieval errors
• Configuration errors

3. General Error Patterns

• Async/await error handling
• Result type usage patterns
• Error propagation strategies
• Logging and debugging approaches

Documentation Requirements

Error Handling Guide

• Error type hierarchy and relationships
• When and how to catch specific errors
• Recovery and retry strategies
• User-facing error message guidelines

Code Examples

// Comprehensive error handling example
do {
    let result = try await cloudKitService.performOperation()
    // Handle success
} catch let error as CloudKitError {
    switch error {
    case .networkError(let underlying):
        // Handle network issues
    case .authenticationFailed:
        // Handle auth failures
    // ... other cases
    }
} catch let error as TokenManagerError {
    // Handle token-specific errors
} catch {
    // Handle unexpected errors
}

Best Practices

• Error handling in different application contexts
• Testing error scenarios
• Performance considerations
• Security implications of error handling

Tasks

• Document all error types with @throws annotations
• Create error handling strategy guide
• Add comprehensive code examples
• Document retry and recovery patterns
• Add troubleshooting section for common errors

Acceptance Criteria

• All error types are fully documented
• Error handling strategies are clear and actionable
• Examples cover real-world scenarios
• Developers can implement robust error handling

Related

• PR Adding Server to Server Authentication #105 CodeRabbit feedback
• Error handling improvements
• API documentation initiative

Labels

documentation, error-handling, best-practices, api

[leogdion]

README has error handling examples. Consider adding more comprehensive error handling guide.