feat(logging): prepend fox-mini silhouette to DI-logger bootstrap banner

Pulls the four-line fox-mini ASCII out of the embedded branding
resources and writes each line through IPluginLog before the existing
bootstrap line, so an /xllog reader sees the Hellion Forge mark on
every plugin load. The text provenance ("by Julia Moon - Hellion
Forge") follows the silhouette, then the version + fingerprint line
stays where it was.

Empty lines from the resource are skipped so the log stays compact.

HellionChat/Infrastructure/Logging/DalamudLoggingProvider.cs

@@ -3,6 +3,7 @@ using System.Reflection;
 using System.Security.Cryptography;
 using System.Text;
 using Dalamud.Plugin.Services;
+using HellionChat.Branding;
 using Microsoft.Extensions.Logging;
 
 namespace HellionChat.Infrastructure.Logging;
@@ -26,12 +27,22 @@ public sealed class DalamudLoggingProvider : ILoggerProvider
     }
 
     // One-shot per plugin load. Intentionally visible in xllog so uncredited
-    // ports of the DalamudLogger trio keep announcing their origin.
+    // ports of the DalamudLogger trio keep announcing their origin — the
+    // mini fox silhouette goes first, then the textual provenance line.
     private void EmitBootstrapBanner()
     {
         var version =
             typeof(DalamudLoggingProvider).Assembly.GetName().Version?.ToString() ?? "0.0.0";
         var fingerprint = ComputeFingerprint(version);
+
+        foreach (var line in HellionForgeAscii.FoxMini.Split('\n'))
+        {
+            var trimmed = line.TrimEnd('\r');
+            if (trimmed.Length > 0)
+                _pluginLog.Information(trimmed);
+        }
+
+        _pluginLog.Information("by Julia Moon - Hellion Forge");
         _pluginLog.Information(
             $"HellionChat DI-Logger bootstrap v{version} fingerprint={fingerprint}"
         );