Feature: Add missing CLI projects to search_projects.py registry

[nishtha-agarwal-211]

Description

The interactive terminal search script search_projects.py lists only 18 projects out of the 38+ projects in the repository. We want to update the interactive terminal registry to include all available CLI projects.

Proposed Solution

1. Browse the games/, math/, and utilities/ directories to identify projects not listed in the PROJECTS array inside search_projects.py.
2. Add objects matching the schema (name, emoji, category, difficulty, description, keywords, path) for these missing projects to the registry array.
3. Test that running python search_projects.py successfully shows the newly added projects and launches them without errors.

[github-actions]

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[steam-bell-92]

@nishtha-agarwal-211 assigned