Service: start/stop helpers, safe start from foreground only

app/src/main/java/io/github/abrarul/modularai/service/AgentService.kt

@@ -26,9 +26,11 @@ class AgentService : Service() {
             .addAction(Notification.Action.Builder(null, "Stop", stop).build())
             .build()
         startForeground(1, n, ServiceInfo.FOREGROUND_SERVICE_TYPE_DATA_SYNC)
-        wake = getSystemService(PowerManager::class.java)
-            .newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "modularai:agent").apply { acquire(30 * 60 * 1000L) }
-        return START_STICKY
+        if (wake?.isHeld != true) {
+            wake = getSystemService(PowerManager::class.java)
+                .newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "modularai:agent").apply { acquire(2 * 60 * 60 * 1000L) }
+        }
+        return START_NOT_STICKY
     }
 
     override fun onDestroy() { wake?.takeIf { it.isHeld }?.release(); super.onDestroy() }
@@ -37,6 +39,13 @@ class AgentService : Service() {
     companion object {
         private const val CH = "agent"
         const val ACTION_STOP = "io.github.abrarul.modularai.STOP"
-        fun start(ctx: Context) = ctx.startForegroundService(Intent(ctx, AgentService::class.java))
+
+        /** Android only allows this while the app is visible; failures are ignored (the job still runs). */
+        fun start(ctx: Context) {
+            runCatching { ctx.startForegroundService(Intent(ctx, AgentService::class.java)) }
+        }
+        fun stop(ctx: Context) {
+            runCatching { ctx.stopService(Intent(ctx, AgentService::class.java)) }
+        }
     }
 }