Group FAQs by a topic relation, ordered; drop unused FAQ teaser

Elternbeirat.Web.Tests/PocketBaseFixture.cs

@@ -313,23 +313,49 @@ public sealed class PocketBaseFixture : IAsyncLifetime
             title = "Herbstbasar", location = "Schulhof", note = "", @public = true,
         });
 
-        // Faqs: two topics.
+        // Faq topics: two, ordered. The topics own the grouping and the order the FAQ
+        // page shows the groups in (Mensa before Schließfächer).
+        var lunchTopicId = await CreateRecordAsync(http, "faq_topics", new
+        {
+            title = "Mensa und Mittagessen", slug = "mensa", intro = "",
+            order = 1, @public = true,
+        });
+        var lockerTopicId = await CreateRecordAsync(http, "faq_topics", new
+        {
+            title = "Schließfächer", slug = "schliessfach", intro = "",
+            order = 2, @public = true,
+        });
+
+        // Faqs: each points at its topic through the "topic" relation (the created
+        // topic id), and carries its own order within the topic.
         await CreateRecordAsync(http, "faqs", new
         {
             question = "Wann gibt es Mittagessen?", answer = "Um 12 Uhr.",
-            topic = "Mensa und Mittagessen", @public = true,
+            topic = lunchTopicId, order = 1, @public = true,
         });
         await CreateRecordAsync(http, "faqs", new
         {
             question = "Wie viel kostet ein Schließfach?", answer = "20 Euro.",
-            topic = "Schließfächer", @public = true,
+            topic = lockerTopicId, order = 1, @public = true,
         });
     }
 
-    private static async Task CreateRecordAsync(HttpClient http, string collection, object record)
+    private static async Task<string> CreateRecordAsync(HttpClient http, string collection, object record)
     {
         var response = await http.PostAsJsonAsync($"/api/collections/{collection}/records", record);
         response.EnsureSuccessStatusCode();
+
+        // Return the created record's id so a caller can seed a relation to it (e.g. a
+        // faq pointing at its topic). Callers that do not need it just ignore the value.
+        var created = await response.Content.ReadFromJsonAsync<CreatedRecord>();
+        return created?.Id ?? throw new InvalidOperationException(
+            $"PocketBase returned no id for the created '{collection}' record.");
+    }
+
+    private sealed record CreatedRecord
+    {
+        [System.Text.Json.Serialization.JsonPropertyName("id")]
+        public string Id { get; init; } = string.Empty;
     }
 
     private sealed record AuthResponse