feat: 修复临时文件目录获取逻辑，确保在不同环境下正确创建临时文件

Author: a422015028

app/src/main/java/com/muort/upworker/feature/scripteditor/ScriptEditorViewModel.kt

@@ -167,7 +167,7 @@ class ScriptEditorViewModel @Inject constructor(
                 Timber.d("Original content length: ${content.length}, Fixed: ${fixedContent.length}")
 
                 // Create temporary file
-                val tempDir = java.io.File(System.getProperty("java.io.tmpdir"))
+                val tempDir = java.io.File(System.getProperty("java.io.tmpdir") ?: System.getenv("TEMP") ?: "/tmp")
                 val tempFile = java.io.File(tempDir, "$scriptName.js")
 
                 try {

app/src/main/java/com/muort/upworker/feature/worker/WorkerViewModel.kt

@@ -33,7 +33,7 @@ class WorkerViewModel @Inject constructor(
                 val content = scriptFile.readText(Charsets.UTF_8)
 
                 // 创建临时文件
-                val tempDir = java.io.File(System.getProperty("java.io.tmpdir"))
+                val tempDir = java.io.File(System.getProperty("java.io.tmpdir") ?: System.getenv("TEMP") ?: "/tmp")
                 val tempFile = java.io.File(tempDir, "$scriptName.js")
 
                 try {