Serve 503 when PocketBase is unavailable across all content pages

Elternbeirat.Web/Features/Home/Home.razor.cs

@@ -8,8 +8,8 @@ public partial class Home
 {
     [LoggerMessage(
         Level = LogLevel.Warning,
-        Message = "Could not load the home page from PocketBase.")]
-    private static partial void LogLoadFailed(
+        Message = "Could not load the home page from PocketBase; embeds are omitted.")]
+    private static partial void LogSourceUnavailable(
         ILogger logger,
         Exception exception);
 
@@ -19,6 +19,9 @@ public partial class Home
     [Inject]
     private ILogger<Home> Logger { get; set; } = null!;
 
+    [CascadingParameter]
+    private HttpContext? HttpContext { get; set; }
+
     // Which dynamic blocks the home page shows is editorial: it comes from the
     // "home" page's embed field in PocketBase, not from hard-coded markup.
     private IReadOnlyList<string> _embed = [];
@@ -27,14 +30,15 @@ public partial class Home
     {
         try
         {
-            var pages = await PocketBase.GetPagesAsync();
+            var pages = await PocketBase.GetPagesAsync(HttpContext?.RequestAborted ?? default);
             var home = pages.FirstOrDefault(page => Page.IsHomeSlug(page.Slug));
             _embed = home?.Embed ?? [];
         }
-        catch (HttpRequestException exception)
+        catch (PocketBaseUnavailableException exception)
         {
-            // Source unreachable -> render the intro without embeds instead of a 500.
-            LogLoadFailed(Logger, exception);
+            // Only the embeds fail: render the static intro without them instead of a
+            // 500. The home page's own text is markup, so it stays intact.
+            LogSourceUnavailable(Logger, exception);
         }
     }
 }