chore: initial skeleton

- docs/architecture.md: native rewrite plan (5 services + control plane,
  Active-Active cluster like nmg, Floating-IP for HTTP ingress)
- cmd/edgeguard-{api,scheduler,ctl}: minimal Gin + CLI stubs
- packaging/debian/edgeguard-{api,ui,meta}: control + maintainer scripts
- deploy/systemd/edgeguard-api.service + edgeguard-scheduler.service
  with hardening defaults
- Makefile: build / cross-compile (amd64+arm64) / deb / publish targets
- scripts/install.sh + scripts/apt-repo/build-package.sh stubs

cmd/edgeguard-scheduler/main.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"log"
+	"time"
+)
+
+var version = "0.0.1-dev"
+
+func main() {
+	log.Printf("edgeguard-scheduler %s starting", version)
+	for {
+		time.Sleep(60 * time.Second)
+	}
+}