Real-Time Options Trading Frontend

I need a browser-based interface that mirrors TradingView’s on-chart buy/sell ticket, but for one-day-to-expiry option contracts traded through my Robinhood account. The entire front end must be written in JavaScript; I am open to plain JS with HTML/CSS or any lightweight framework you find suitable, as long as load time stays snappy and the code remains readable.

Core workflow
• The chart streams the underlying’s price in real time. Alongside it, a live panel shows the option’s mark, updating tick-by-tick so gains and drawdowns are obvious at a glance.
• A single click on Buy or Sell instantly purchases or shorts the option strike closest to the current underlying price (always 1 DTE). After entry, an ❌ beside the position lets me close it just as quickly.
• Behind the scenes, every ticket action calls the Robinhood API to create or close the trade. I will supply my credentials and any necessary tokens; you handle authentication, order submission and error handling.

Acceptance criteria
1. Web page loads in any modern desktop browser with no additional install.
2. Price feed and P/L values update in near-real time (<250 ms perceived delay).
3. Buy/Sell executes the correct 1 DTE strike and immediately reflects the opened position.
4. Clicking ❌ sends the close order, removes the position from the list and freezes further updates for that trade.
5. Clean, well-commented JavaScript source plus a short README explaining setup, API keys and how to switch to paper trading if needed.
6. Must be very fast and provide speed test.
7. Must be private access. this should not be open to the web. Will require a log in or something to access it. must have 2 factor authentication.
8. I do not need charting either.

If this sounds clear, let me know any external libraries you’d like to pull in for the charting or WebSocket feed so I can approve them before you start.