Improve Error Messages with Troubleshooting Guides

## Description
As this project has matured through 35,418+ commits, the complexity of error scenarios has grown. Enhanced error messages with troubleshooting steps would improve developer experience.

## Suggestion
- Add detailed error codes with documentation links
- Include common causes and solutions in error messages
- Create a centralized error reference guide
- Add contextual debugging information in error responses
- Implement suggested fixes in error output

## Benefits
- Reduces debugging time
- Improves developer experience
- Decreases support burden
- Facilitates faster issue resolution

The issue does not identify any files, tests, or entry points to inspect. Begin by locating the project's error-response handling and documentation structure; the work is done when error codes, contextual guidance, troubleshooting links, and a centralized reference are defined and consistently integrated.

Written by the indexing model from the issue text.