begin develop configloader

UnzipSeqArchv.bat

@@ -1,12 +1,29 @@
 @echo off
-setlocal
+setlocal EnableExtensions
 
 set "REN_DIR=%~dp0"
 for %%I in ("%REN_DIR%..") do set "PROJ_ROOT=%%~fI"
-set "PY_SCRIPT=A:\1 Amazon_Active_Projects\3 ProjectStructure\zip_sequences.py"
 
-if not exist "%PY_SCRIPT%" (
-    echo Missing %PY_SCRIPT%
+set "CONFIG_LOADER=%REN_DIR%ConfigLoader.ps1"
+set "CONFIG_PATH=%REN_DIR%config.json"
+
+if not exist "%CONFIG_LOADER%" (
+    echo [ERROR] ConfigLoader.ps1 not found next to UnzipSeqArchv.bat.
+    echo Please run UpgradeSeqBatches.ps1 to refresh helper files.
+    exit /b 1
+)
+
+if not exist "%CONFIG_PATH%" (
+    echo [ERROR] config.json not found next to UnzipSeqArchv.bat.
+    echo Please run UpgradeSeqBatches.ps1 to refresh helper files.
+    exit /b 1
+)
+
+for /f "usebackq delims=" %%I in (`powershell -NoProfile -ExecutionPolicy Bypass -Command ^
+    "Set-StrictMode -Version Latest; $loader = Resolve-Path -LiteralPath '%CONFIG_LOADER%' -ErrorAction Stop; . $loader.Path; $pyPath = Join-Path (Get-StructDirectory) 'zip_sequences.py'; if (-not (Test-Path -LiteralPath $pyPath)) { throw \"zip_sequences.py not found at $pyPath\" }; Write-Output $pyPath"`) do set "PY_SCRIPT=%%I"
+
+if not defined PY_SCRIPT (
+    echo [ERROR] Unable to resolve zip_sequences.py path from config.
     exit /b 1
 )