Record slice 1 recheck after clothing, session and social.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/HSchool.AppHost.Tests/ServiceabilityTests.cs

@@ -83,6 +83,51 @@ public class ServiceabilityTests(AppHostFixture fixture)
         }
     }
 
+    [Fact]
+    public async Task MissingModFolder_LeavesTheSchoolUnstartedAndTheFileUntouched()
+    {
+        using var client = fixture.App.CreateHttpClient("server");
+        await SchoolApiTests.ResetAsync(client);
+        var created = await SchoolApiTests.CreateAsync(client, "Без папки мода", TuesdayMorning);
+        var directory = await SavesDirectoryAsync(client);
+        var path = Path.Combine(directory, $"{created.Id}.json");
+        var node = JsonNode.Parse(File.ReadAllText(path))
+            ?? throw new InvalidOperationException($"Save {path} parsed to nothing.");
+        var mods = node["modIds"] as JsonArray
+            ?? throw new InvalidOperationException($"Save {path} has no modIds.");
+        mods.Add("missing-pack-slice1-recheck");
+        var patched = node.ToJsonString(new JsonSerializerOptions { WriteIndented = true });
+
+        try
+        {
+            await SchoolApiTests.ResetAsync(client);
+            File.WriteAllText(path, patched);
+            var before = File.ReadAllBytes(path);
+
+            using var reload = await client.PostAsync("/api/dev/reload-schools", content: null, TestContext.Current.CancellationToken);
+            reload.EnsureSuccessStatusCode();
+
+            Assert.Equal(before, File.ReadAllBytes(path));
+
+            var state = await SchoolApiTests.GetSchoolsAsync(client);
+            var mine = state.Schools.FirstOrDefault(school => school.Id == created.Id);
+            var other = state.Others.FirstOrDefault(school => school.Id == created.Id);
+            Assert.True(mine is not null || other is not null);
+            Assert.False(mine?.Running ?? other?.Running ?? true);
+
+            using var people = await client.GetAsync(
+                $"/api/schools/{created.Id}/people?pageSize=1",
+                TestContext.Current.CancellationToken);
+            Assert.Equal(HttpStatusCode.NotFound, people.StatusCode);
+        }
+        finally
+        {
+            DeleteSchoolFiles(directory, created.Id);
+            using var cleanup = await client.PostAsync("/api/dev/reload-schools", content: null, TestContext.Current.CancellationToken);
+            cleanup.EnsureSuccessStatusCode();
+        }
+    }
+
     [Fact]
     public async Task Dump_ReturnsPeopleNodesAndTimetable()
     {