新增编译脚本和 github 工作流配置文件

scripts/build.bat

@@ -0,0 +1,53 @@
+@echo off
+setlocal enabledelayedexpansion
+
+set APP_NAME=BingPaper
+set OUTPUT_DIR=output
+
+echo 开始构建 %APP_NAME% 多平台二进制文件...
+
+if exist %OUTPUT_DIR% rd /s /q %OUTPUT_DIR%
+mkdir %OUTPUT_DIR%
+
+set PLATFORMS=linux/amd64 linux/arm64 windows/amd64 windows/arm64 darwin/amd64 darwin/arm64
+
+for %%p in (%PLATFORMS%) do (
+    for /f "tokens=1,2 delims=/" %%a in ("%%p") do (
+        set GOOS=%%a
+        set GOARCH=%%b
+        
+        set OUTPUT_NAME=%APP_NAME%-%%a-%%b
+        set BINARY_NAME=!OUTPUT_NAME!
+        if "%%a"=="windows" set BINARY_NAME=!OUTPUT_NAME!.exe
+        
+        echo 正在编译 %%a/%%b...
+        
+        set PACKAGE_DIR=%OUTPUT_DIR%\!OUTPUT_NAME!
+        if not exist !PACKAGE_DIR! mkdir !PACKAGE_DIR!
+        
+        env GOOS=%%a GOARCH=%%b CGO_ENABLED=0 go build -o !PACKAGE_DIR!\!BINARY_NAME! main.go
+        
+        if !errorlevel! equ 0 (
+            echo   %%a/%%b 编译成功
+            
+            xcopy /e /i /y web !PACKAGE_DIR!\web >nul
+            copy /y config.example.yaml !PACKAGE_DIR!\ >nul
+            copy /y README.md !PACKAGE_DIR!\ >nul
+            
+            pushd %OUTPUT_DIR%
+            tar -czf !OUTPUT_NAME!.tar.gz !OUTPUT_NAME!
+            rd /s /q !OUTPUT_NAME!
+            popd
+            
+            echo   %%a/%%b 打包完成: !OUTPUT_NAME!.tar.gz
+        ) else (
+            echo   %%a/%%b 编译失败
+            if exist !PACKAGE_DIR! rd /s /q !PACKAGE_DIR!
+        )
+    )
+)
+
+echo ----------------------------------------
+echo 多平台打包完成！输出目录: %OUTPUT_DIR%
+dir /s /b %OUTPUT_DIR%
+pause