fix(agent/windows): named pipe Tailscale + hideWindow + logs

- Use Windows named pipe \.\pipe\studioe5-tailscaled instead of Unix socket
- Apply hideWindow to all child processes (tailscale, podman, docker, browser)
- Redirect agent logs to <data-dir>/agent.log and tailscaled logs to tailscaled.log
- Fix double tailscale/ tailscale dir path in startTailscaleAndReport
- Remove --operator=root on Windows
- Bump agent version to 0.3.1

agent/main.go

@@ -42,6 +42,14 @@ func main() {
 		log.Fatalf("Cannot create data-dir: %v", err)
 	}
 
+	// Redirect agent logs to a file so the console can be hidden on Windows.
+	agentLogPath := filepath.Join(*dataDir, "agent.log")
+	if agentLogFile, err := os.OpenFile(agentLogPath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644); err == nil {
+		log.SetOutput(agentLogFile)
+	} else {
+		log.Printf("Cannot open agent log file %s: %v", agentLogPath, err)
+	}
+
 	cfg, _, err := loadOrCreateConfig(*dataDir)
 	if err != nil {
 		log.Fatalf("Cannot load config: %v", err)
@@ -78,8 +86,7 @@ func main() {
 }
 
 func startTailscaleAndReport(dataDir, nodeID, headscaleURL, authKey string) {
-	tsDir := filepath.Join(dataDir, "tailscale")
-	ip, err := startTailscale(tsDir, nodeID, headscaleURL, authKey)
+	ip, err := startTailscale(dataDir, nodeID, headscaleURL, authKey)
 	if err != nil {
 		log.Printf("Tailscale error: %v", err)
 		return