Add test environment setup script

Create Test Environment.bat

@@ -0,0 +1,51 @@
+@echo off
+setlocal
+
+REM === TEST ENVIRONMENT SETUP ===
+REM Creates a sample folder structure to test the rename/move script.
+REM Run this to reset back to a clean baseline at any time.
+
+set "TESTROOT=%~dp0TEST"
+
+echo Resetting test environment at %TESTROOT%...
+echo.
+
+REM Wipe and recreate the test root
+if exist "%TESTROOT%" (
+    rd /s /q "%TESTROOT%"
+    echo Cleared existing test folder.
+)
+
+REM === CREATE PATIENT FOLDERS ===
+REM Each has Patient\Export\ with an EXPORT.txt and some .tif files
+
+for %%p in (Patient001 Patient002 Patient003) do (
+    mkdir "%TESTROOT%\%%p\Patient\Export"
+    echo.> "%TESTROOT%\%%p\Patient\Export\EXPORT.txt"
+    echo.> "%TESTROOT%\%%p\Patient\Export\1000001.tif"
+    echo.> "%TESTROOT%\%%p\Patient\Export\1000002.tif"
+    echo.> "%TESTROOT%\%%p\Patient\Export\1000003.tif"
+    echo Created: %%p
+)
+
+REM === CREATE AN ARCHIVE FOLDER (should be skipped by the main script) ===
+mkdir "%TESTROOT%\Patient004\Patient\Export\archive"
+echo.> "%TESTROOT%\Patient004\Patient\Export\archive\EXPORT.txt"
+echo.> "%TESTROOT%\Patient004\Patient\Export\archive\1000001.tif"
+echo Created: Patient004 (archive folder - should be skipped)
+
+REM === CREATE A PT STMT FOLDER (should also be skipped) ===
+mkdir "%TESTROOT%\Patient005\Patient\Export\PT STMT_20260101"
+echo.> "%TESTROOT%\Patient005\Patient\Export\PT STMT_20260101\EXPORT.txt"
+echo.> "%TESTROOT%\Patient005\Patient\Export\PT STMT_20260101\1000001.tif"
+echo Created: Patient005 (PT STMT folder - should be skipped)
+
+echo.
+echo Done. Test environment ready at:
+echo   %TESTROOT%
+echo.
+echo To test the rename script, copy "Rename and Move PT STMT.bat" into:
+echo   %TESTROOT%
+echo and run it from there.
+echo.
+pause