新增Win7离线构建并调整PDF采购章及供需方签章位置

packaging/win7/02_build_exe.cmd

@@ -0,0 +1,20 @@
+@echo off
+setlocal EnableExtensions DisableDelayedExpansion
+cd /d "%~dp0"
+set "PYTHONUTF8=1"
+set "PYTHONIOENCODING=utf-8"
+set "PYTHONHOME="
+set "PYTHONPATH="
+if not exist "%~dp0.buildenv\Scripts\python.exe" goto missing
+"%~dp0.buildenv\Scripts\python.exe" "%~dp0win7\build.py" build
+if errorlevel 1 goto failed
+echo.
+echo EXE is in the new dated subfolder under dist. See BUILD_INFO.json.
+pause
+exit /b 0
+:missing
+echo Run 01_install_env.cmd successfully first.
+:failed
+echo BUILD FAILED. Check the messages and build log. Keep the old server unchanged.
+pause
+exit /b 1