Handle non-interactive terminal environments gracefully

When MCC runs in non-interactive terminals (e.g. CI runners, IDE
embedded shells, piped input), several Console APIs throw exceptions
because there is no real console attached.

Changes:
- Program.cs: Wrap Console.KeyAvailable / Console.ReadKey in
  HandleFailure() with try-catch so MCC does not crash on startup
  failure in headless environments.
- Chunk.cs: Wrap Console.BufferWidth / BufferHeight in try-catch
  with fallback values (120x50) to prevent exceptions when rendering
  chunk maps without a console buffer.
- Map.cs: Same treatment for the map rendering path - use safe
  fallback values when Console.BufferWidth/Height are unavailable.
- ReplayHandler.cs: Replace Array.Reverse() (returns void in newer
  .NET) with .AsEnumerable().Reverse() to fix compilation with
  .NET 10 SDK where the void return breaks the fluent chain.

Made-with: Cursor

MinecraftClient/Commands/Chunk.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Text;
 using Brigadier.NET;
 using Brigadier.NET.Builder;
@@ -100,11 +100,15 @@ namespace MinecraftClient.Commands
                 sb.AppendLine(string.Format(Translations.cmd_chunk_chunk_pos, markChunkX, markChunkZ)); ;
             }
 
-            int consoleHeight = Math.Max(Math.Max(Console.BufferHeight, Settings.Config.Main.Advanced.MinTerminalHeight) - 2, 25);
+            int safeHeight;
+            int safeWidth;
+            try { safeHeight = Console.BufferHeight; } catch { safeHeight = 50; }
+            try { safeWidth = Console.BufferWidth; } catch { safeWidth = 120; }
+            int consoleHeight = Math.Max(Math.Max(safeHeight, Settings.Config.Main.Advanced.MinTerminalHeight) - 2, 25);
             if (consoleHeight % 2 == 0)
                 --consoleHeight;
 
-            int consoleWidth = Math.Max(Math.Max(Console.BufferWidth, Settings.Config.Main.Advanced.MinTerminalWidth) / 2, 17);
+            int consoleWidth = Math.Max(Math.Max(safeWidth, Settings.Config.Main.Advanced.MinTerminalWidth) / 2, 17);
             if (consoleWidth % 2 == 0)
                 --consoleWidth;