feat: 内部署名改为编译期注入（构建机本地文件，不进仓库）；关于页展示

deploy/build.bat

@@ -30,7 +30,17 @@ cd ..
 echo === [3/5] server build ===
 cd server
 if not exist ..\dist mkdir ..\dist
-go build -o ..\dist\scoreboard.exe . || exit /b 1
+REM 内部署名从构建机本地文件注入（deploy\signature.local.txt 已 gitignore，不进公开仓库）；
+REM 文件不存在时二进制里也是空的，源码永远不含真实署名。
+set "INTERNAL_SIGNATURE="
+if exist "..\deploy\signature.local.txt" set /p INTERNAL_SIGNATURE=<"..\deploy\signature.local.txt"
+if defined INTERNAL_SIGNATURE (
+  go build -ldflags "-X git.yeij.top/AskaEth/Scoreboard/server/internal/version.InternalSignature=%INTERNAL_SIGNATURE%" -o ..\dist\scoreboard.exe . || exit /b 1
+  echo   internal signature injected
+) else (
+  go build -o ..\dist\scoreboard.exe . || exit /b 1
+  echo   no internal signature
+)
 cd ..
 
 echo === [4/5] console deps ===