feat issue-144: Python recommend uv over Rye across rules

[whysage]

PR for #144

Summary by CodeRabbit

• Documentation
  • Preferred dependency manager guidance updated to "uv (preferred) / Poetry" across multiple Python guides and rules.
  • Added new uv guidance entry and removed prior Rye-specific documentation.
  • Updated links and references to point to uv resources; clarified use with virtual environments.
  • Improved consistency in tech-stack listings and minor formatting cleanups; no runtime or behavioral changes.

[coderabbitai]

Walkthrough

Documentation updates replace Rye with uv (preferred) across multiple Python rules README and MDC files, add a new uv-dependency-management.mdc, and remove poetry-rye-dependency-management.mdc. Changes are text/tooling recommendations only; no code or control flow changes.

Changes

Cohort / File(s)	Summary of Changes
Best Practices README updates rules/python-cursorrules-prompt-file-best-practices/README.md	Replaced Rye with uv (preferred) in Python environment/dependency manager references; minor wording/format tweaks.
LLM/ML Workflow docs rules/python-llm-ml-workflow-cursorrules-prompt-file/README.md, rules/python-llm-ml-workflow-cursorrules-prompt-file/poetry-rye-dependency-management.mdc, rules/python-llm-ml-workflow-cursorrules-prompt-file/uv-dependency-management.mdc	Replaced Rye with uv (preferred) in Tech Stack and guidance; deleted poetry-rye-dependency-management.mdc; added uv-dependency-management.mdc declaring "uv (preferred) / Poetry".
Projects Guide docs rules/python-projects-guide-cursorrules-prompt-file/README.md, rules/python-projects-guide-cursorrules-prompt-file/python-dependency-management-rule.mdc	Switched references and URL from Rye to uv (preferred); updated description and dependency management link; minor text adjustments.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related issues

• Proposal: Update Python Dependency Management Recommendations to uv #144 — Matches the repo-wide proposal to replace Rye with uv and to add a uv dependency-management rule; this PR implements those changes.

Suggested reviewers

• PatrickJS

Poem

I hop through docs with tidy delight,
Swapping Rye for uv—swift as a kite.
Carrots in rows, versions aligned,
Virtual burrows neatly defined.
Dependencies bloom in shades of uv. 🥕✨

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.
Title Check	✅ Passed	The title succinctly conveys the core update of recommending uv over Rye across the Python rules, clearly reflecting the primary change without introducing unrelated content.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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