Polish premium P1 IED card and command panel UX

[masarray]

Scope

• remove the IED card hover scale/zoom effect completely; hover now changes background and border color only
• keep card dimensions and neighbouring layout stable while the pointer moves across the IED Explorer
• add distinct connected, selected, hover, and connected+selected card states without geometry changes
• add a compact LIVE badge to connected IED cards
• refine the Command Panel header hierarchy with a Lucide sliders icon, selected-device subtitle, and control-count badge
• add dedicated Command DataGrid header, cell, row, alternating-row, hover, and selected styles
• preserve disabled horizontal scrolling and disabled command-column resizing
• preserve the existing atomic single Confirm state machine and all MMS/control/SCL-export behavior
• align application, portable script, and CI package metadata at 1.6.12

IED card behavior

• normal: neutral white/blue premium gradient
• hover: background and border color change only; no RenderTransform, scale, zoom, or layout movement
• connected: green-tinted surface and LIVE badge
• selected: stronger blue border and selected surface
• connected + selected: combined green/blue selected surface

Command Panel behavior

• clearer panel/header contrast and spacing
• compact control-count badge
• dedicated row hover and selection colors
• selected row receives a clear left accent without resizing the row
• horizontal scrollbar remains disabled
• user column resizing remains disabled, preventing overflow from being recreated

Regression boundaries

• no protocol, discovery, monitoring, report, control, or SCL export behavior changed
• Content="{Binding ControlPendingConfirmationLabel}" remains the only Confirm action
• separate Confirm Open / Confirm Close buttons are explicitly rejected by CI
• CI explicitly rejects any scale or RenderTransform in the IED-card item-container hover style
• temporary staging files and apply workflows were removed before final validation

Validation

GitHub Actions Build ArIED 61850 #231 completed successfully:

• source, website, external-IP, and license-boundary verification
• premium P0/P1 UX invariant gate
• no-hover-scale IED-card gate
• connected-card and Command Panel style gates
• ARIEC61850 Smart Control, Workspace, interoperable converter, and schema-aware exporter API gates
• .NET restore
• Release build
• portable Windows x64 publish
• artifact upload

Artifact: ArIED61850-win-x64

SHA-256: 1764c091e56397b07a2dfb80c260be638c7301378320bdb4d69a3e4841e61ef4

Final diff

Five production/workflow files only:

• .github/workflows/build.yml
• App.xaml
• ArIED61850Tester.csproj
• MainWindow.xaml
• scripts/publish-windows-portable.ps1