Introduce IModalCoordinator with strongly-typed ModalId and async inline-alert disposal

scripts/run-tests.ps1

@@ -69,10 +69,24 @@ function Switch-DockerDaemon([string]$targetOS) {
         throw "docker is not on PATH. Install Docker Desktop and ensure it is available."
     }
 
-    $dockerCli = Join-Path (Split-Path (Split-Path $dockerCmd.Source)) "DockerCli.exe"
+    # Docker Desktop layout has changed across versions: newer installs put DockerCli.exe at
+    # 'C:\Program Files\Docker\Docker\DockerCli.exe', older installs at '...\resources\DockerCli.exe'.
+    # Try the canonical sibling-of-resources path first (newer layout), then the older
+    # resources-relative path, then a recursive scan.
+    $resourcesDir = Split-Path (Split-Path $dockerCmd.Source)
+    $dockerCli = Join-Path (Split-Path $resourcesDir) "DockerCli.exe"
 
     if (-not (Test-Path $dockerCli)) {
-        throw "DockerCli.exe not found at '$dockerCli'. Cannot switch Docker daemon mode."
+        $dockerCli = Join-Path $resourcesDir "DockerCli.exe"
+    }
+
+    if (-not (Test-Path $dockerCli)) {
+        $found = Get-ChildItem (Split-Path $resourcesDir) -Recurse -Filter "DockerCli.exe" -ErrorAction SilentlyContinue | Select-Object -First 1
+        if ($found) { $dockerCli = $found.FullName }
+    }
+
+    if (-not (Test-Path $dockerCli)) {
+        throw "DockerCli.exe not found near '$resourcesDir'. Cannot switch Docker daemon mode."
     }
 
     & $dockerCli -SwitchDaemon 2>$null

src/EventLogExpert.Runtime/Alerts/AlertDialogService.cs

@@ -3,19 +3,22 @@
 
 using EventLogExpert.Runtime.Banner;
 using EventLogExpert.Runtime.Common.Threading;
+using EventLogExpert.Runtime.Modal;
 
 namespace EventLogExpert.Runtime.Alerts;
 
 public sealed class AlertDialogService(
-    IInlineAlertHostBroker inlineAlertHostBroker,
+    IModalCoordinator modalCoordinator,
     IMainThreadService mainThreadService,
-    IBannerService bannerService,
+    IErrorBannerService errorBannerService,
+    IInfoBannerService infoBannerService,
     Func<IReadOnlyDictionary<string, object?>, Task<bool>> openStandaloneAlert,
     Func<IReadOnlyDictionary<string, object?>, Task<string>> openStandalonePrompt) : IAlertDialogService
 {
-    private readonly IBannerService _bannerService = bannerService;
-    private readonly IInlineAlertHostBroker _inlineAlertHostBroker = inlineAlertHostBroker;
+    private readonly IErrorBannerService _errorBannerService = errorBannerService;
+    private readonly IInfoBannerService _infoBannerService = infoBannerService;
     private readonly IMainThreadService _mainThreadService = mainThreadService;
+    private readonly IModalCoordinator _modalCoordinator = modalCoordinator;
     private readonly Func<IReadOnlyDictionary<string, object?>, Task<bool>> _openStandaloneAlert = openStandaloneAlert;
     private readonly Func<IReadOnlyDictionary<string, object?>, Task<string>> _openStandalonePrompt =
         openStandalonePrompt;
@@ -54,15 +57,15 @@ public Task<bool> ShowAlert(
 
     public Task ShowErrorAlert(string title, string message, string? actionLabel = null, Func<Task>? action = null)
     {
-        _bannerService.ReportError(title, message, actionLabel, action);
+        _errorBannerService.ReportError(title, message, actionLabel, action);
 
         return Task.CompletedTask;
     }
 
     private Task<string> DisplayPromptCore(string title, string message, string? initialValue) =>
         InvokeOnMainThreadAsync(async () =>
         {
-            if (!_inlineAlertHostBroker.TryGet(out var host))
+            if (!_modalCoordinator.TryGetInlineAlertHost(out var host))
             {
                 return await _openStandalonePrompt(new Dictionary<string, object?>
                 {
@@ -74,7 +77,7 @@ private Task<string> DisplayPromptCore(string title, string message, string? ini
 
             try
             {
-                InlineAlertResult result = await host!.ShowInlineAlertAsync(
+                InlineAlertResult result = await host.ShowInlineAlertAsync(
                     new InlineAlertRequest(title, message, "OK", "Cancel", true, initialValue),
                     CancellationToken.None);
 
@@ -104,16 +107,16 @@ private Task<bool> ShowAlertCore(
     {
         if (presentation == AlertPresentation.Banner)
         {
-            _bannerService.ReportInfoBanner(title, message, BannerSeverity.Warning);
+            _infoBannerService.ReportInfoBanner(title, message, BannerSeverity.Warning);
 
             return Task.FromResult(false);
         }
 
         return InvokeOnMainThreadAsync(async () =>
         {
-            bool hostAvailable = _inlineAlertHostBroker.TryGet(out var host);
+            _modalCoordinator.TryGetInlineAlertHost(out var host);
 
-            if (presentation == AlertPresentation.InlineOnly && !hostAvailable)
+            if (presentation == AlertPresentation.InlineOnly && host is null)
             {
                 throw new InvalidOperationException(
                     $"{nameof(AlertPresentation)}.{nameof(AlertPresentation.InlineOnly)} requires an active inline " +
@@ -122,10 +125,10 @@ private Task<bool> ShowAlertCore(
 
             if (presentation == AlertPresentation.PopupOnly)
             {
-                hostAvailable = false;
+                host = null;
             }
 
-            if (!hostAvailable)
+            if (host is null)
             {
                 return await _openStandaloneAlert(new Dictionary<string, object?>
                 {
@@ -138,7 +141,7 @@ private Task<bool> ShowAlertCore(
 
             try
             {
-                InlineAlertResult result = await host!.ShowInlineAlertAsync(
+                InlineAlertResult result = await host.ShowInlineAlertAsync(
                     new InlineAlertRequest(title, message, accept, cancel, false, null),
                     CancellationToken.None);
 

src/EventLogExpert.Runtime/Alerts/AlertPresentation.cs

@@ -18,7 +18,7 @@ public enum AlertPresentation
     Auto,
 
     /// <summary>
-    ///     Route to <see cref="IBannerService.ReportInfoBanner" /> with <see cref="BannerSeverity.Warning" /> severity.
+    ///     Route to <see cref="IInfoBannerService.ReportInfoBanner" /> with <see cref="BannerSeverity.Warning" /> severity.
     ///     Only valid for one-button overloads (the banner has no accept/cancel pair); using it on a two-button overload
     ///     throws.
     /// </summary>