Add diagnostics to determinism workflow for debugging

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: AngeloTadeucci

.github/workflows/determinism.yml

@@ -28,6 +28,20 @@ jobs:
       - name: Clone test data
         run: git clone --depth 1 https://github.com/MS2Community/MapleStory2-XML.git test-data
 
+      - name: Diagnose test data
+        shell: bash
+        run: |
+          echo "=== File count ==="
+          find test-data/Server -type f | wc -l
+          echo "=== First 10 files (sorted) ==="
+          find test-data/Server -type f | sort | head -10
+          echo "=== Sample file hash (raw) ==="
+          sha256sum test-data/Server/AI/AI_Anos.xml
+          echo "=== Sample file size ==="
+          wc -c test-data/Server/AI/AI_Anos.xml
+          echo "=== Sample file line endings ==="
+          xxd test-data/Server/AI/AI_Anos.xml | head -3
+
       - name: Build
         run: dotnet build MS2Tools.sln -c Release