Fix Windows batch script - remove PowerShell dependency

- Replace PowerShell Set-Content with native batch commands
- Use type, findstr, echo and move for file processing
- Should work on all Windows systems without PowerShell restrictions

setup_framework.bat

@@ -85,25 +85,22 @@ echo Updating CMakeLists.txt...
 REM Create backup
 copy "%CMAKE_FILE%" "%CMAKE_FILE%.backup" >nul
 
-REM For Windows, we'll use PowerShell for text replacement
-powershell -Command ^
-"$content = Get-Content '%CMAKE_FILE%'; ^
-$newContent = @(); ^
-$inSection = $false; ^
-foreach ($line in $content) { ^
-    if ($line -match 'zephyr_library_sources_ifdef\(CONFIG_HAS_SEMTECH_SX126X') { ^
-        $newContent += $line; ^
-        $newContent += '  ${ZEPHYR_LORAMAC_NODE_MODULE_DIR}/src/radio/sx126x/radio.c'; ^
-        $newContent += '  ${ZEPHYR_LORAMAC_NODE_MODULE_DIR}/src/radio/sx126x/radio_sx126x.c'; ^
-        $inSection = $true; ^
-    } elseif ($inSection -and $line -match '^\)') { ^
-        $newContent += $line; ^
-        $inSection = $false; ^
-    } elseif (-not $inSection) { ^
-        $newContent += $line; ^
-    } ^
-}; ^
-$newContent | Set-Content '%CMAKE_FILE%'"
+REM Simple replacement - add the two lines after the zephyr_library_sources_ifdef line
+set TEMP_FILE=%CMAKE_FILE%.tmp
+type nul > "%TEMP_FILE%"
+
+REM Use findstr to process the file line by line
+for /f "delims=" %%i in ('type "%CMAKE_FILE%"') do (
+    echo %%i >> "%TEMP_FILE%"
+    echo %%i | findstr /c:"zephyr_library_sources_ifdef(CONFIG_HAS_SEMTECH_SX126X" >nul
+    if not errorlevel 1 (
+        echo   ${ZEPHYR_LORAMAC_NODE_MODULE_DIR}/src/radio/sx126x/radio.c >> "%TEMP_FILE%"
+        echo   ${ZEPHYR_LORAMAC_NODE_MODULE_DIR}/src/radio/sx126x/radio_sx126x.c >> "%TEMP_FILE%"
+    )
+)
+
+REM Replace original file with modified version
+move "%TEMP_FILE%" "%CMAKE_FILE%"
 
 if %errorlevel% neq 0 (
     echo [31mError: Failed to update CMakeLists.txt[0m