docs: add comprehensive TROUBLESHOOT.md for common setup and development issues

[durdana3105]

Summary

Closes #

This PR adds a comprehensive TROUBLESHOOT.md to help contributors and users quickly resolve common setup, configuration, and runtime issues while working with LegalEase.

Changes Made

• Added a dedicated TROUBLESHOOT.md document.
• Included troubleshooting steps for frontend (React + Vite) setup and development.
• Added backend (FastAPI) installation and startup troubleshooting.
• Documented environment variable configuration and common misconfigurations.
• Included AI service and API key troubleshooting.
• Added authentication and JWT-related troubleshooting.
• Documented database and Supabase connection issues.
• Added file upload and PDF export troubleshooting.
• Included frontend and backend testing guidance.
• Added Docker, build, CORS, rate-limiting, and port conflict troubleshooting.
• Included a Frequently Asked Questions (FAQ) section and general debugging checklist.

Benefits

• Simplifies project setup for new contributors.
• Reduces repetitive support requests related to installation and configuration.
• Provides a centralized reference for common development and runtime issues.
• Improves the overall documentation and contributor experience.

Testing

• Verified that all commands match the current project structure and README.
• Reviewed troubleshooting steps for accuracy and consistency.
• Documentation-only change; no application functionality was modified.

[vercel]

@durdana3105 is attempting to deploy a commit to the WizardKing's projects Team on Vercel.

A member of the Team first needs to authorize it.

[AnuranjanJain]

@durdana3105 Which issue does it closes? Please mention it

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Project	Deployment	Actions	Updated (UTC)
legal-ease	Ready	Preview, Comment	Jul 20, 2026 11:02am

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