Problem

Issue #1407 identified that when pages break, it historically took a long time to notice these errors. The issue requested:

1. Some kind of automatic error reporting
2. An easy way for users to get in contact from the error page

Solution

This PR completely overhauls the server-side error handling in app/error.tsx to provide a professional, user-friendly error experience with both automatic reporting and clear contact options.

🚨 Automatic Error Reporting

When a server-side error occurs, the error details are now automatically sent to the backend using the existing sendFeedback API:

const errorReport = {
    type: 'server_error',
    error: error?.message || 'Unknown server error',
    stack: error?.stack || 'No stack trace available',
    digest: error?.digest || 'No digest available',
    timestamp: new Date().toISOString(),
    url: window.location.href,
    userAgent: navigator.userAgent,
    automaticReport: true
}

await api.sendFeedback('server_error_auto', errorReport)

This happens silently in the background when the error page loads, ensuring immediate error visibility for the development team.

📝 Enhanced User Experience

Before: Users saw a basic "500 - Server-side error occurred" message with raw JSON error details.

After: Users now see:

• Professional error messaging with clear next steps
• Multiple recovery options (refresh, go home, try again)
• Optional error reporting form with user context
• Prominent contact information (Discord & Email)
• Collapsible technical details for advanced users
• Responsive Bootstrap-styled design

💬 Easy Contact Options

The error page now prominently displays contact information:

• Discord: Direct link to join the support server (https://discord.gg/wvKXfTgCfb)
• Email: Direct mailto link to support (support@coflnet.com)

📤 Manual Error Reporting

Users can optionally provide additional context through a form that:

• Asks what they were trying to do when the error occurred
• Allows them to choose whether to include technical details
• Lets them specify preferred contact method
• Submits via the existing feedback system (server_error_manual)

Technical Changes

Files Modified

• app/error.tsx: Complete rewrite with enhanced error handling
• global.d.ts: Added ErrorReportData interface for type safety
• docs/enhanced-error-handling.md: Comprehensive documentation

API Integration

• Leverages existing api.sendFeedback() infrastructure
• New feedback keys: server_error_auto and server_error_manual
• Maintains backward compatibility with existing feedback system

Error Report Structure

interface ErrorReportData {
    userDescription: string
    includeErrorDetails: boolean
    contactMethod: 'discord' | 'email' | 'none'
}

Benefits

1. Faster Issue Detection: Automatic reporting means errors are logged immediately
2. Better User Support: Clear contact information and multiple support channels
3. Improved User Experience: Professional error page instead of raw error display
4. Enhanced Debugging: Optional user context helps with issue resolution
5. Maintains Privacy: Users control what information is shared

Testing

The enhanced error page has been tested with:

• Interactive UI preview showing the complete user experience
• Verification of collapsible technical details functionality
• Validation of contact links and recovery options
• TypeScript compilation and type safety checks

This implementation directly addresses both requirements from issue #1407 while maintaining a professional user experience and providing valuable debugging information to the development team.

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