Add systemd resource budgets with TOML profiles

cmd/budget/main.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"budget/internal/budget"
+)
+
+func main() {
+	if err := budget.Run(os.Args[1:], os.Stdout); err != nil {
+		fmt.Fprintln(os.Stderr, "budget:", err)
+		os.Exit(1)
+	}
+}