Update commands list and improve command descriptions

[vim-zz]

✨ PR Description

Purpose: Update user command documentation to expand command list and provide more precise command descriptions for the gitStream platform.
Main changes:

• Added two new commands: /gs etr and /gs code-experts with their descriptions and actions
• Improved descriptions for existing commands to be more concise and user-friendly
• Standardized formatting across all command documentation entries

Generated by LinearB AI and added by gitStream.
_{AI-generated content may contain inaccuracies. Please verify before using. We'd love your feedback! 🚀}

[orca-security-us]

Orca Security Scan Summary

Status	Check	Issues by priority
Passed	Infrastructure as Code	0   0   0   0	View in Orca
Passed	SAST	0   0   0   0	View in Orca
Passed	Secrets	0   0   0   0	View in Orca
Passed	Vulnerabilities	0   0   0   0	View in Orca

[gitstream-cm]

✨ PR Review

LGTM

Generated by LinearB AI and added by gitStream.
_{AI-generated content may contain inaccuracies. Please verify before using. We'd love your feedback! 🚀}

[claude]

Code Review Feedback

✅ Code Quality and Best Practices

The changes are well-structured and follow the repository's documentation conventions:

• Proper markdown table formatting maintained
• Consistent use of FontAwesome icons for platform identification
• Command descriptions follow a clear, action-oriented pattern

✅ Documentation Improvements

The updated command descriptions are significantly better:

• Before: "Runs a one-time code review" → After: "Run an AI-powered code review on this PR" (more specific and user-friendly)
• Before: "Generates or updates the PR description" → After: "Generate a description of the changes in this PR" (clearer and more concise)
• Before: "Displays available commands" → After: "Show help message with available commands" (more natural phrasing)

🆕 New Commands Added

Two new commands have been properly documented:

1. /gs etr - Links to existing provide_estimated_time_to_review.cm automation (docs/downloads/automation-library/provide_estimated_time_to_review.cm:17)
2. /gs code-experts - Links to existing explain_code_experts@v1 automation (docs/downloads/automation-library/standard/explain_code_experts.cm:15)

✅ No Issues Found

• Bugs: None identified - all commands reference existing, valid automations
• Performance: Documentation-only changes have no performance impact
• Security: No security concerns with documentation updates
• Test Coverage: No tests needed for documentation changes

📝 Minor Suggestions

Consider these optional improvements for consistency:

1. The /gs etr description could be more descriptive: "Add estimated review time label based on PR complexity"
2. The /gs code-experts description could clarify: "Add comment suggesting code experts for review based on changed files"

✅ Overall Assessment

This is a solid documentation improvement that:

• Adds two useful commands that reference existing automations
• Improves clarity and user-friendliness of existing command descriptions
• Maintains consistency with the repository's documentation standards
• Requires no additional testing or security considerations

Recommendation: ✅ Approve - This PR enhances the user experience without introducing any risks.