feat: replace Python server with Go binary

go.mod

@@ -0,0 +1,3 @@
+module github.com/johanj/vault1984-web
+
+go 1.23.6

main.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"embed"
+	"log"
+	"net/http"
+	"os"
+)
+
+//go:embed *.html *.svg *.css
+var static embed.FS
+
+func main() {
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = "8099"
+	}
+
+	http.Handle("/", http.FileServer(http.FS(static)))
+
+	log.Printf("vault1984-web starting on :%s", port)
+	if err := http.ListenAndServe(":"+port, nil); err != nil {
+		log.Fatal(err)
+	}
+}