Improve workers for backtests

src/Managing.Workers/appsettings.SandboxLocal.json

@@ -1,13 +1,8 @@
 {
-  "Logging": {
-    "LogLevel": {
-      "Default": "Information",
-      "Microsoft.Hosting.Lifetime": "Information"
-    }
-  },
   "WorkerBacktestCompute": true,
   "BacktestComputeWorker": {
-    "MaxConcurrentBacktests": 6,
+    "MaxConcurrentPerUser": 1,
+    "MaxConcurrentPerInstance": 5,
     "JobPollIntervalSeconds": 5,
     "HeartbeatIntervalSeconds": 30,
     "StaleJobTimeoutMinutes": 5
@@ -26,20 +21,6 @@
     "Url": "https://influx-db.apps.managing.live",
     "Organization": "managing-org",
     "Token": "zODh8Hn8sN5VwpVJH0HAwDpCJPE4oB5IUg8L4Q0T67KM1Rta6PoM0nATUzf1ddkyWx_VledooZXfFIddahbL9Q=="
-  },
-  "Sentry": {
-    "Dsn": "https://fe12add48c56419bbdfa86227c188e7a@glitch.kai.managing.live/1"
-  },
-  "N8n": {
-    "WebhookUrl": "https://n8n.kai.managing.live/webhook/fa9308b6-983b-42ec-b085-71599d655951",
-    "IndicatorRequestWebhookUrl": "https://n8n.kai.managing.live/webhook/3aa07b66-1e64-46a7-8618-af300914cb11",
-    "Username": "managing-api",
-    "Password": "T259836*PdiV2@%!eR%Qf4"
-  },
-  "Kaigen": {
-    "BaseUrl": "https://kaigen-back-kaigen-stage.up.railway.app",
-    "DebitEndpoint": "/api/credits/debit",
-    "RefundEndpoint": "/api/credits/refund"
   }
 }