Split MAX bot loops and make chats cache-first

server/QMax.Api/Services/MaxOutboxWorker.cs

@@ -13,6 +13,26 @@ public sealed class MaxOutboxWorker(
     protected override async Task ExecuteAsync(CancellationToken stoppingToken)
     {
         var delay = TimeSpan.FromSeconds(Math.Max(1, _options.MaxOutboxPollIntervalSeconds));
+
+        await Task.WhenAll(
+            RunOutboxLoopAsync(
+                "message outbox",
+                delay,
+                (outbox, cancellationToken) => outbox.ProcessPendingMessagesOnceAsync(cancellationToken),
+                stoppingToken),
+            RunOutboxLoopAsync(
+                "chat command outbox",
+                delay,
+                (outbox, cancellationToken) => outbox.ProcessPendingChatActionsOnceAsync(cancellationToken),
+                stoppingToken));
+    }
+
+    private async Task RunOutboxLoopAsync(
+        string workerName,
+        TimeSpan delay,
+        Func<MaxOutboxService, CancellationToken, Task<int>> process,
+        CancellationToken stoppingToken)
+    {
         using var timer = new PeriodicTimer(delay);
 
         while (!stoppingToken.IsCancellationRequested)
@@ -30,11 +50,11 @@ public sealed class MaxOutboxWorker(
             {
                 await using var scope = scopeFactory.CreateAsyncScope();
                 var outbox = scope.ServiceProvider.GetRequiredService<MaxOutboxService>();
-                await outbox.ProcessOnceAsync(stoppingToken);
+                await process(outbox, stoppingToken);
             }
             catch (Exception ex)
             {
-                logger.LogWarning(ex, "QMAX outbox tick failed.");
+                logger.LogWarning(ex, "QMAX {WorkerName} tick failed.", workerName);
             }
         }
     }