feat: implement Chrono sweeper

[Shrutiii01]

What does this PR do?

This PR introduces the "Chrono-Sweeper Dashboard", a high-end cyberpunk puzzle application that re-imagines classic grid clearance mechanics. The codebase implements an internal 2-D array matrix with recursive flood-fill graph traversal algorithms to handle contiguous safe-cell reveals alongside a high-frequency action timer loop that triggers layout explosion animations on deadline violations.

Type of change

• New project under Projects/
• Fix or improvement to an existing project
• Showcase page / workflow / docs change

Checklist

• I read CONTRIBUTING.md.
• My folder name is Title Case with real spaces (e.g. To Do Web App).
• My folder contains README.md, project.json and index.html.
• project.json is valid and title matches the folder name.
• The project opens by double-clicking index.html — no build step.
• No console errors, no tracking scripts, no third-party iframes.
• I respect the Code of Conduct.

Linked issue

Closes #173

[github-actions]

Great work and contribution, will be merged soon as NSoc 2026 contribution.