feat: подробное отображение ошибок синхронизации

backend/UniVerse.Infrastructure/Services/ScheduleSyncService.cs

@@ -21,6 +21,7 @@ public class ScheduleSyncService : IScheduleSyncService
 
     public async Task<SyncResultDto> SyncScheduleAsync(SyncScheduleRequest request)
     {
+        const string stage = "schedule";
         int created = 0, updated = 0, skipped = 0;
         try
         {
@@ -45,7 +46,18 @@ public class ScheduleSyncService : IScheduleSyncService
         catch (Exception ex)
         {
             _logger.LogError(ex, "Schedule sync failed");
-            var result = new SyncResultDto(created, updated, skipped, ex.Message);
+            var result = new SyncResultDto(created, updated, skipped, ex.Message, BuildErrorDetails(
+                ex,
+                stage,
+                created,
+                updated,
+                skipped,
+                [
+                    $"specialtyCode={request.SpecialtyCode ?? "<empty>"}",
+                    $"timeMin={request.TimeMin:O}",
+                    $"timeMax={request.TimeMax:O}",
+                    $"typeId=[{string.Join(", ", request.TypeId ?? [])}]"
+                ]));
             _lastStatus = new SyncStatusDto(DateTime.UtcNow, "failed", result);
             return result;
         }
@@ -53,6 +65,7 @@ public class ScheduleSyncService : IScheduleSyncService
 
     public async Task<SyncResultDto> SyncRoomsAsync()
     {
+        const string stage = "rooms";
         int created = 0, updated = 0, skipped = 0;
         try
         {
@@ -96,7 +109,13 @@ public class ScheduleSyncService : IScheduleSyncService
         catch (Exception ex)
         {
             _logger.LogError(ex, "Rooms sync failed");
-            var result = new SyncResultDto(created, updated, skipped, ex.Message);
+            var result = new SyncResultDto(created, updated, skipped, ex.Message, BuildErrorDetails(
+                ex,
+                stage,
+                created,
+                updated,
+                skipped,
+                ["request=name:<empty>, sort:+building.name,+name, deleted:false, page size:100"]));
             _lastStatus = new SyncStatusDto(DateTime.UtcNow, "failed", result);
             return result;
         }
@@ -109,4 +128,30 @@ public class ScheduleSyncService : IScheduleSyncService
     }
 
     public Task<SyncStatusDto> GetLastSyncStatusAsync() => Task.FromResult(_lastStatus);
+
+    private static IReadOnlyList<string> BuildErrorDetails(
+        Exception exception,
+        string stage,
+        int created,
+        int updated,
+        int skipped,
+        IReadOnlyList<string> context)
+    {
+        var details = new List<string>
+        {
+            $"stage={stage}",
+            $"exceptionType={exception.GetType().FullName}",
+            $"message={exception.Message}",
+            $"partialResult=created:{created}, updated:{updated}, skipped:{skipped}"
+        };
+
+        if (exception is HttpRequestException httpException && httpException.StatusCode.HasValue)
+            details.Add($"httpStatus={(int)httpException.StatusCode.Value} {httpException.StatusCode.Value}");
+
+        if (exception.InnerException != null)
+            details.Add($"innerException={exception.InnerException.GetType().FullName}: {exception.InnerException.Message}");
+
+        details.AddRange(context);
+        return details;
+    }
 }