[Chore]: Update documentation for System.CommandLine 2.0.0-beta5 changes

[ahmedig]

Area

Documentation

Motivation

After completing the System.CommandLine 2.0.0-beta5 upgrade, documentation needs to be updated to reflect any changes in:

• Internal API references that may affect developers
• Code comments that reference old API patterns
• Developer setup instructions if any dependencies changed
• Architecture documentation that mentions command-line parsing

Task Description

Review and update internal documentation and code comments to ensure accuracy with the new System.CommandLine 2.0.0-beta5 implementation.

Documentation Areas to Review:

1. Code Comments:

• Review all command handler files for outdated API references
• Update comments in Program.cs and base classes
• Ensure example code in comments reflects new patterns
• Update any TODO comments related to command-line parsing

2. Developer Documentation:

• Review docs/QUICKSTART.md for any CLI-related instructions
• Update docs/INSTALLATION.md if any setup steps changed
• Check README.md for outdated CLI examples
• Verify any architecture documentation is accurate

3. Internal Comments:

• Update method documentation in command handlers
• Review XML documentation comments for accuracy
• Update any inline comments referencing old API patterns
• Ensure error message documentation is current

4. Configuration Files:

• Review any .editorconfig or analysis rule files
• Check if any project settings need updates
• Verify that code analysis rules are still appropriate

Files to Review:

• All files in src/GenAIDBExplorer/GenAIDBExplorer.Console/CommandHandlers/
• src/GenAIDBExplorer/GenAIDBExplorer.Console/Program.cs
• docs/QUICKSTART.md
• docs/INSTALLATION.md
• README.md
• Any other developer-facing documentation

Acceptance Criteria

• All code comments accurately reflect new API patterns
• Developer documentation contains no outdated CLI instructions
• Method documentation is updated for new parameter patterns
• README.md examples (if any) are current
• No references to old System.CommandLine API patterns remain
• Error message documentation is accurate
• Any CLI examples in documentation work correctly

Impact / Risk

• Dependencies: Should be completed after issues [Chore]: Update System.CommandLine package reference to 2.0.0-beta5 #15-19 are done
• Risk Level: Low - Documentation-only changes
• Scope: Internal documentation and code comments
• User Impact: Minimal - primarily affects developers working on the project

Related Issues:

• Should be completed after [Chore]: Update System.CommandLine package reference to 2.0.0-beta5 #15, [Chore]: Migrate Program.cs to System.CommandLine 2.0.0-beta5 API #16, [Chore]: Update CommandHandler base class for System.CommandLine 2.0.0-beta5 #17, [Chore]: Migrate all command handlers to System.CommandLine 2.0.0-beta5 API #18, and [Chore]: Testing and validation for System.CommandLine 2.0.0-beta5 upgrade #19
• Final cleanup step in System.CommandLine upgrade effort from plan-upgrade-system-commandline-beta5.md
• Ensures long-term maintainability of the codebase