Description

Updated the backend documentation in README.md to improve the onboarding experience for contributors using AI-powered features. The existing setup instructions were expanded with clearer backend setup steps, platform-specific virtual environment commands, Python version guidance, and a troubleshooting FAQ covering common issues encountered during local development.

Changes include:

• Expanded Backend Setup section with a clearer setup workflow.

• Added virtual environment setup instructions for macOS/Linux, Windows PowerShell, and Windows Command Prompt.

• Added Python version compatibility guidance.

• Added a Troubleshooting FAQ covering:

  • Demucs first-run model download (~300 MB)
  • Python version compatibility issues
  • Port already in use errors

• Added backend dependency notes near Chord AI and Stem Separator features.

No application code, configuration files, dependencies, or UI components were modified.

Fixes #22

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Verified the documentation changes by reviewing the updated README structure and ensuring all setup instructions and troubleshooting scenarios are clearly documented.

• Reviewed README rendering and formatting
• Verified setup instructions and troubleshooting content for completeness

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules