Clear All Timers + Render DOM Elements

Challenge summary

Implement independent timer-management and DOM-rendering utilities while keeping their state and responsibilities separate.

What you'll practice

• Cancel tracked timeouts without coupling them to rendering state.
• Render nested element and text descriptions safely.
• Expose both utilities through the documented public contract.

What Premium unlocks

Premium unlocks the runnable workspace, behavioral checks, implementation walkthrough, and edge-case discussion.