feat(log): 增加日志定期清理机制，防止长期运行日志无限累加

- FileLogger 新增过期清理（保留7天）及单文件100MB写入上限（适配异步写入版）
- CrashHandler 激活崩溃日志清理并补充异常保护
- App 启动清理 + 运行中每24小时定时清理，覆盖设备长期不断电场景

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

app/src/main/java/com/shuwei/intelligent/shelves/App.kt

@@ -5,8 +5,11 @@ import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
 import android.content.SharedPreferences
+import android.os.Handler
+import android.os.Looper
 import com.shuwei.intelligent.shelves.utils.BootReceiver
 import com.shuwei.intelligent.shelves.utils.CrashHandler
+import com.shuwei.intelligent.shelves.utils.FileLogger
 
 /**
  * @author: star
@@ -19,10 +22,22 @@ class App : Application() {
         super.onCreate()
         app = this
         CrashHandler.init(this)
+        // 启动时立即清理一次过期日志
+        cleanupLogs()
+        // 设备长期不断电、进程不会重新启动，运行中每24小时定期清理一次
+        logCleanupHandler.postDelayed(logCleanupRunnable, LOG_CLEANUP_INTERVAL)
         val filter = IntentFilter(Intent.ACTION_BOOT_COMPLETED)
         registerReceiver(BootReceiver(), filter)
     }
 
+    /**
+     * 清理过期的日志文件：文件日志与崩溃日志均保留最近7天
+     */
+    private fun cleanupLogs() {
+        FileLogger.cleanupExpiredLogs(this)
+        CrashHandler.getInstance()?.cleanupOldCrashReports()
+    }
+
     companion object {
         private lateinit var app: App
         var canteenId = "0"
@@ -36,6 +51,19 @@ class App : Application() {
         @Volatile
         private var sharedPref: SharedPreferences? = null
 
+        /** 日志定期清理间隔：24小时，与日志文件按天滚动对齐 */
+        private const val LOG_CLEANUP_INTERVAL = 24L * 60 * 60 * 1000
+
+        private val logCleanupHandler = Handler(Looper.getMainLooper())
+
+        /** 日志定期清理任务：执行后重新调度自身，形成循环 */
+        private val logCleanupRunnable = object : Runnable {
+            override fun run() {
+                getInstance().cleanupLogs()
+                logCleanupHandler.postDelayed(this, LOG_CLEANUP_INTERVAL)
+            }
+        }
+
         fun getInstance(): App {
             return app
         }