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

agent/client/posture_windows.go

@@ -5,7 +5,6 @@ package client
 import (
 	"encoding/json"
 	"os"
-	"os/exec"
 	"path/filepath"
 	"strconv"
 	"strings"
@@ -177,10 +176,10 @@ $p | ConvertTo-Json -Depth 4 -Compress
 `
 
 func collectPosture() *PostureReport {
-	out, err := exec.Command(
-		"powershell", "-NoProfile", "-ExecutionPolicy", "Bypass", "-Command",
+	out, err := silentCombinedOutput(
+		"powershell", "-NoProfile", "-ExecutionPolicy", "Bypass", "-WindowStyle", "Hidden", "-Command",
 		buildPostureScript(),
-	).CombinedOutput()
+	)
 	if err != nil {
 		return fallbackPosture()
 	}