fix(logs): §C+E · purge dead code 활성화 + record() 통합 관문 (cloud-mvp d8425d0 이식)

app/src/main/java/com/medithings/vesiscan/MainActivity.kt

@@ -63,6 +63,18 @@ class MainActivity : ComponentActivity() {
         com.medithings.vesiscan.telemetry.AlarmAggregator.start()
         com.medithings.vesiscan.telemetry.NotificationSubscriber.start(this)
 
+        // 2026-08-04: LOG_STORAGE_ANALYSIS §C fix — 앱 시작 시 오래된 로그 자동 정리.
+        //   실패해도 필수기능 영향 없음 (silent · UC-05).
+        try {
+            val app = applicationContext
+            com.medithings.vesiscan.services.MeasurementLogService.getInstance(app)
+                .purgeOldLogs(keepDays = 365)
+            com.medithings.vesiscan.services.BleDebugLogger.getInstance(app)
+                .purgeOldLogs(keepDays = 7)
+            com.medithings.vesiscan.services.AdcCsvLogger.purgeOldSessions(keepDays = 30)
+            com.medithings.vesiscan.services.ClinicalSessionStore.purgeOldSessions(keepDays = 90)
+        } catch (_: Exception) { }
+
         enableEdgeToEdge()
         window.addFlags(android.view.WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
         setContent {