feat: Added todos list command

Description

Added command to list users todos. Supports the optional --state flag to filter todos by done state.

Related Issues

Resolves #1114

How has this been tested?

Screenshots (if appropriate):

Types of changes

• 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 change)
• Documentation
• Chore (Related to CI or Packaging to platforms)
• Test gap