docs: enhance troubleshooting guide with detailed solutions

[claudeaceae]

Summary

This PR significantly improves the troubleshooting documentation to help users diagnose and fix common issues more effectively:

Enhanced error troubleshooting

• Expanded "Target closed" error section with 5 common causes and their solutions
• Added --isolated flag example for profile conflicts

New troubleshooting section

• Added section for configuration file issues
• Included JSON validation tips and common pitfalls
• Provided example of valid MCP configuration

Improved debugging instructions

• Added platform-specific examples for Windows (PowerShell) and Unix/Linux
• Documented what information debug logs contain
• Added -y flag to avoid installation prompts during debugging

Changes

• docs/troubleshooting.md - Enhanced with more detailed solutions and examples

These improvements help users:

1. Self-diagnose common connection and startup errors without opening an issue
2. Validate their configuration files correctly
3. Enable debugging on different operating systems
4. Understand what information logs provide for bug reports

Impact

This should reduce common support questions and help users get up and running faster.

🤖 Generated with Claude Code

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