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

agent/client/dns_windows.go

@@ -3,7 +3,6 @@
 package client
 
 import (
-	"os/exec"
 	"strings"
 )
 
@@ -28,7 +27,7 @@ $search = (Get-DnsClient -ErrorAction SilentlyContinue |
            Sort-Object -Unique) -join ','
 [PSCustomObject]@{ servers = ($addrs -join ','); search = $search } | ConvertTo-Json -Compress
 `
-	if out, err := exec.Command("powershell", "-NoProfile", "-ExecutionPolicy", "Bypass", "-Command", script).Output(); err == nil {
+	if out, err := silentOutput("powershell", "-NoProfile", "-ExecutionPolicy", "Bypass", "-WindowStyle", "Hidden", "-Command", script); err == nil {
 		raw := strings.TrimSpace(string(out))
 		if idx := strings.LastIndex(raw, "{"); idx >= 0 {
 			raw = raw[idx:]
@@ -46,7 +45,7 @@ $search = (Get-DnsClient -ErrorAction SilentlyContinue |
 // parseDNSIpconfig extracts DNS servers from ipconfig /all output.
 func parseDNSIpconfig() *DNSConfig {
 	cfg := &DNSConfig{}
-	out, err := exec.Command("ipconfig", "/all").Output()
+	out, err := silentOutput("ipconfig", "/all")
 	if err != nil {
 		return cfg
 	}