Platform upgrade: login auth fix, OCR/OSS upload, system menus and dicts, weather dashboard, weighing and invoice modules

scripts/start-backend.ps1

@@ -0,0 +1,10 @@
+$ErrorActionPreference = "Stop"
+$root = (Get-Location).Path
+Start-Process -FilePath "dotnet" `
+  -ArgumentList @("run", "--no-build", "--project", "backend/AgriculturalPlatform.Api/AgriculturalPlatform.Api.csproj") `
+  -WorkingDirectory $root `
+  -RedirectStandardOutput "$root/backend-run.log" `
+  -RedirectStandardError "$root/backend-run.err.log" `
+  -WindowStyle Hidden
+Start-Sleep -Seconds 6
+Get-NetTCPConnection -LocalPort 5246 -ErrorAction SilentlyContinue | Where-Object State -eq Listen | Select-Object LocalPort, State, OwningProcess