fix: BugCollect.buildDeviceInfo 和 appVersion 在 SDK 未初始化时安全降级

Co-Authored-By: Claude <noreply@anthropic.com>

sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/BugCollect.kt

@@ -233,11 +233,25 @@ object BugCollect {
     }
 
     private fun appVersion(): String = runCatching {
+        if (!XuqmSDK.isInitialized()) return "unknown"
         val ctx = XuqmSDK.appContext
         ctx.packageManager.getPackageInfo(ctx.packageName, 0).versionName ?: "unknown"
     }.getOrDefault("unknown")
 
     private fun buildDeviceInfo(): IssueEvent.DeviceInfo {
+        if (!XuqmSDK.isInitialized()) {
+            return IssueEvent.DeviceInfo(
+                model = Build.MODEL,
+                manufacturer = Build.MANUFACTURER,
+                osName = "Android",
+                osVersion = Build.VERSION.RELEASE,
+                locale = java.util.Locale.getDefault().toString(),
+                timezone = java.util.TimeZone.getDefault().id,
+                isEmulator = false,
+                freeMemoryMb = 0,
+                buildType = "unknown",
+            )
+        }
         val ctx = XuqmSDK.appContext
         val actMgr = ctx.getSystemService(Context.ACTIVITY_SERVICE) as? ActivityManager
         val memInfo = ActivityManager.MemoryInfo().also { actMgr?.getMemoryInfo(it) }