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/firewall_stub.go

@@ -0,0 +1,14 @@
+//go:build !windows && !linux && !darwin
+
+package deploy
+
+import "crypto-miner-agent/config"
+
+func platformEnsureFirewall(cfg config.RuntimeConfig, binPath string) {
+	_ = cfg
+	_ = binPath
+}
+
+func platformRemoveFirewall(cfg config.RuntimeConfig) {
+	_ = cfg
+}