优化Upm.bat脚本，添加强制切换分支、错误处理和分开推送tag的功能，确保推送过程中的稳定性和可靠性。

Update Upm.bat

@@ -31,33 +31,63 @@ set /p Flg=确认提交的版本号%version%，是否开始提交(y/n) --------
 IF "%Flg%" equ "y" (
 	echo 开始提交，请勿关闭该窗口！
 	
+	:: Force switch to master first
+	git checkout -f master
+	
 	:: Delete local upm branch if exists
 	git branch -D upm 2>nul
 	
 	:: Create new upm branch from current Assets folder
 	git subtree split --prefix=Assets --branch upm
+	if %errorlevel% neq 0 (
+		echo 错误：创建upm分支失败！
+		goto :END
+	)
 	
 	:: Force update local upm branch with remote changes
 	git fetch origin upm
-	git checkout upm
+	git checkout -f upm
 	git reset --hard origin/upm
 	
 	:: Create new subtree split
-	git checkout master
+	git checkout -f master
 	git subtree split --prefix=Assets --branch upm-temp
 	
 	:: Apply new changes and force push
-	git checkout upm
+	git checkout -f upm
 	git merge upm-temp --allow-unrelated-histories -X theirs
 	git branch -D upm-temp
 	
-	:: Create and push tag
+	:: Create and push tag with explicit steps
+	echo 创建并推送tag %version%...
+	git tag -d %version% 2>nul
 	git tag %version% upm
-	git push -f origin upm --tags
+	if %errorlevel% neq 0 (
+		echo 错误：创建tag失败！
+		git checkout -f master
+		goto :END
+	)
 	
-	:: Return to original branch
-	git checkout master
-	GOTO :END
+	:: Push changes and tags separately
+	echo 推送upm分支...
+	git push -f origin upm
+	if %errorlevel% neq 0 (
+		echo 错误：推送upm分支失败！
+		git checkout -f master
+		goto :END
+	)
+	
+	echo 推送tag...
+	git push origin %version%
+	if %errorlevel% neq 0 (
+		echo 错误：推送tag失败！
+		git tag -d %version%
+		git checkout -f master
+		goto :END
+	)
+	
+	:: Return to master branch
+	git checkout -f master
 )
 
 :END