Update .NET SDK and Visual Studio version requirements

fix signalR script ref

Merge pull request #26 from froxtrox/upgrade-to-NET10

Update StockChatLive/Pages/Index.cshtml

Apply suggestion from @Copilot

Upgrade StockChatLive to .NET 10 - Update target framework net6.0 to net10.0 - Update Microsoft.AspNetCore.Authentication.JwtBearer 6.0.0 to 10.0.0 - Update SignalR JavaScript client 5.0.11 to 10.0.0 - Solution builds successfully with 0 errors

Save current state before .NET 10 upgrade

Remove duplicate AddSignalR() call

tidy up

Merge pull request #25 from froxtrox/features/async-stock-provider

update PostStock to use async

Merge pull request #24 from froxtrox/features/add-thread-safety

Add thread-safety

Merge pull request #23 from froxtrox/features/implement-periodic-timer

implement PeriodicTimer added RunTimerAsync