Show HN: Vibe coded usage dashboard for claude.ai (Firefox only)

I recently got the $20 claude.ai plan and the best you can do to visualize your chat history is viewing "Recent Chats" at - https://claude.ai/recents

I want to see a visualization of this week compared to last week and estimate the costs per the $20/mo subscription.

I also recently started using Cursor so I used it to Vibe code this webpage along with browser extension for Firefox.

Code is visible here - https://github.com/Noitidart/claude-ai-usage/

And the Firefox browser extension is here - https://github.com/Noitidart/claude-ai-usage/tree/master/.br...

If this gets any traction I can copy the Firefox extension this as a Chrome Extension