feat(agent): add crash logs and watchdog startup

- Recover panics to disk for diagnostics
- Add 5-minute watchdog task with startup
- Add -ensure flag to start detached agent
- Add script to pull remote folder via API

main.go

@@ -13,33 +13,49 @@ import (
 	"flag"
 
 	"tea.chunkbyte.com/kato/go-worm/lib/agent"
+	"tea.chunkbyte.com/kato/go-worm/lib/crashlog"
 	"tea.chunkbyte.com/kato/go-worm/lib/helpers"
 	"tea.chunkbyte.com/kato/go-worm/lib/install"
 	"tea.chunkbyte.com/kato/go-worm/lib/instance"
 )
 
 func main() {
+	defer crashlog.Recover()
+
 	background := flag.Bool("background", false, "run without a console window")
+	ensure := flag.Bool("ensure", false, "start the agent if it is not already running")
 	flag.Parse()
 
 	if err := install.Ensure(); err != nil {
-		helpers.Log.Fatalf("install: %v", err)
+		die(err)
+	}
+
+	if *ensure {
+		if err := instance.EnsureRunning(); err != nil {
+			die(err)
+		}
+		return
 	}
 
 	if *background {
 		if err := instance.Detach(); err != nil {
-			helpers.Log.Fatalf("%v", err)
+			die(err)
 		}
 		return
 	}
 
 	a, err := agent.New()
 	if err != nil {
-		helpers.Log.Fatalf("%v", err)
+		die(err)
 	}
 	defer a.Close()
 
 	if err := a.Serve(); err != nil {
-		helpers.Log.Fatalf("%v", err)
+		die(err)
 	}
 }
+
+func die(err error) {
+	crashlog.RecordError(err)
+	helpers.Log.Fatal(err)
+}