improvement on gm windows, ai

apps/backend/Universe/Api/GetBalanceHandler.cs

@@ -0,0 +1,16 @@
+using FastEndpoints;
+using SpaceGame.Api.Universe.Simulation;
+
+namespace SpaceGame.Api.Universe.Api;
+
+public sealed class GetBalanceHandler(WorldService worldService) : EndpointWithoutRequest
+{
+  public override void Configure()
+  {
+    Get("/api/balance");
+    AllowAnonymous();
+  }
+
+  public override Task HandleAsync(CancellationToken cancellationToken) =>
+    SendOkAsync(worldService.GetBalance(), cancellationToken);
+}

apps/backend/Universe/Api/GetTelemetryHandler.cs

@@ -0,0 +1,49 @@
+using System.Runtime.InteropServices;
+using FastEndpoints;
+using SpaceGame.Api.Universe.Simulation;
+
+namespace SpaceGame.Api.Universe.Api;
+
+public sealed class GetTelemetryHandler(TelemetryService telemetry, WorldService worldService) : EndpointWithoutRequest
+{
+  public override void Configure()
+  {
+    Get("/api/telemetry");
+    AllowAnonymous();
+  }
+
+  public override Task HandleAsync(CancellationToken cancellationToken)
+  {
+    var status = worldService.GetStatus();
+    var connections = worldService.GetConnectionStats();
+    var uptime = telemetry.Uptime;
+
+    return SendOkAsync(new
+    {
+      process = new
+      {
+        uptimeSeconds = uptime.TotalSeconds,
+        cpuPercent = Math.Round(telemetry.CpuPercent, 1),
+        workingSetMb = Math.Round(telemetry.WorkingSetBytes / 1_048_576.0, 1),
+        gcMemoryMb = Math.Round(telemetry.GcMemoryBytes / 1_048_576.0, 1),
+        threadCount = telemetry.ThreadCount,
+        processorCount = Environment.ProcessorCount,
+      },
+      simulation = new
+      {
+        sequence = status.Sequence,
+        connectedClients = connections.ConnectedClients,
+        deltaHistoryCount = connections.DeltaHistoryCount,
+        tickIntervalMs = 200,
+      },
+      runtime = new
+      {
+        frameworkDescription = RuntimeInformation.FrameworkDescription,
+        osDescription = RuntimeInformation.OSDescription,
+        gcGen0 = GC.CollectionCount(0),
+        gcGen1 = GC.CollectionCount(1),
+        gcGen2 = GC.CollectionCount(2),
+      },
+    }, cancellationToken);
+  }
+}

apps/backend/Universe/Api/UpdateBalanceHandler.cs

@@ -0,0 +1,20 @@
+using FastEndpoints;
+using SpaceGame.Api.Definitions;
+using SpaceGame.Api.Universe.Simulation;
+
+namespace SpaceGame.Api.Universe.Api;
+
+public sealed class UpdateBalanceHandler(WorldService worldService) : Endpoint<BalanceDefinition>
+{
+  public override void Configure()
+  {
+    Put("/api/balance");
+    AllowAnonymous();
+  }
+
+  public override Task HandleAsync(BalanceDefinition req, CancellationToken cancellationToken)
+  {
+    var applied = worldService.UpdateBalance(req);
+    return SendOkAsync(applied, cancellationToken);
+  }
+}