ci: observe transcript append failure and Windows reader sharing

.gitea/workflows/pr-push-build-and-test.yaml

@@ -112,6 +112,15 @@ jobs:
             --nologo
           test -s MeetingAssistant/bin/Release/net10.0-windows10.0.19041.0/win-x64/MeetingAssistant.dll
 
+      - name: Measure transcript reader sharing on the Windows Wine host
+        run: |
+          mkdir -p artifacts/tests
+          transcript_probe_exit=0
+          "${WINE_BIN}" "${WIN_DOTNET_DIR}/dotnet.exe" run \
+            --file tools/ci/TranscriptFileShareProbe.cs > artifacts/tests/transcript-file-sharing.json || transcript_probe_exit=$?
+          cat artifacts/tests/transcript-file-sharing.json
+          exit "${transcript_probe_exit}"
+
       - name: Run tests via Wine (Windows dotnet host)
         run: |
           rm -f artifacts/tests/wine.trx