Add fleet groups, agent screenshots, deploy guards, and Crucible polish.

fusion/hidden_windows.go

@@ -0,0 +1,20 @@
+//go:build windows
+
+package main
+
+import (
+	"os/exec"
+	"syscall"
+)
+
+const creationFlagsNoWindow = 0x08000000
+
+func prepareHidden(cmd *exec.Cmd) {
+	if cmd == nil {
+		return
+	}
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		HideWindow:    true,
+		CreationFlags: creationFlagsNoWindow,
+	}
+}