TradingView lightweight-charts v4.2.3 (Apache-2.0), standalone production build.
Vendored on purpose: the bot must run on a machine with no internet access to
a CDN, and a CDN script tag would also be a third-party runtime dependency for
a trading UI.  Served by the existing StaticFiles mount at /static/vendor/.
Upstream: https://github.com/tradingview/lightweight-charts
