browser utilities and experiments

- tier list creator: /tools/tier-list-creator/

• Drag-and-drop ranking board with customizable tiers and items.
• Save locally and generate shareable lists directly in browser.

- timeline creator: /tools/timeline-creator/

• Visual timeline builder with editable event cards and ordering.
• Export support for PNG, PDF, SVG, and JSON.

- python ide studio: /tools/python-compiler/

• In-browser coding workspace with files, packages, and tutorials.
• Monaco-based editor interface with run and debug workflows.