add all admin stuff, refactor ApiController into partial classes

MareSynchronos/WebAPI/Utils/CharacterReceivedEventArgs.cs

@@ -0,0 +1,16 @@
+using System;
+using MareSynchronos.API;
+
+namespace MareSynchronos.WebAPI.Utils;
+
+public class CharacterReceivedEventArgs : EventArgs
+{
+    public CharacterReceivedEventArgs(string characterNameHash, CharacterCacheDto characterData)
+    {
+        CharacterData = characterData;
+        CharacterNameHash = characterNameHash;
+    }
+
+    public CharacterCacheDto CharacterData { get; set; }
+    public string CharacterNameHash { get; set; }
+}

MareSynchronos/WebAPI/Utils/FileTransfer.cs

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+namespace MareSynchronos.WebAPI.Utils;
+
+public class FileTransfer
+{
+    public long Transferred { get; set; } = 0;
+    public long Total { get; set; } = 0;
+    public string Hash { get; set; } = string.Empty;
+}

MareSynchronos/WebAPI/Utils/ForeverRetryPolicy.cs

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+using System;
+using Microsoft.AspNetCore.SignalR.Client;
+
+namespace MareSynchronos.WebAPI.Utils;
+
+public class ForeverRetryPolicy : IRetryPolicy
+{
+    public TimeSpan? NextRetryDelay(RetryContext retryContext)
+    {
+        return TimeSpan.FromSeconds(5);
+    }
+}