feat(build): add uv package manager support for faster installation

[back2zion]

• Add uv workspace configuration to pyproject.toml
• Create run_uv.sh script for automated uv-based installation
• Update README with uv installation option (10-100x faster than conda)
• Add uv.lock for reproducible builds
• Maintain backward compatibility with existing conda setup
• Fix known dependency conflicts (hnswlib, chroma-hnswlib)

Benefits:

• Faster dependency resolution (seconds vs minutes)
• Simplified installation process (~50 lines vs 200+ lines)
• Cross-platform compatibility
• Reproducible builds with lock file
• Better development experience
• Automatic Python version management

Description

• This PR introduces uv package manager support as a faster alternative to conda-based installation. This addresses installation complexity and speed issues commonly faced by users.

• Provides 10-100x faster dependency resolution compared to conda

• Simplifies installation from 200+ line bash script to ~50 lines

• Maintains full backward compatibility with existing conda setup

• Fixes known dependency conflicts automatically

• No breaking changes - all existing functionality remains unchanged.

  Type of change

  • New features (non-breaking change).
  • Bug fix (non-breaking change).
  • Breaking change (fix or feature that would
    cause existing functionality not to work as
    expected).

  Checklist

  • I have performed a self-review of my code.
  • I have added thorough tests if it is a core
    feature.
  • There is a reference to the original bug
    report and related work.
  • I have commented on my code, particularly in
    hard-to-understand areas.
  • The feature is well documented.