feat: publish standalone worker

Separate worker packaging and service lifecycle from the control plane.

config/application/init.go

@@ -0,0 +1,21 @@
+// Package application provides functionality.
+package application
+
+import (
+	"os"
+
+	_ "rsgit.ru/rsmon/rsmon/config/env" // Import to ensure .env is loaded before reading env vars
+)
+
+// Env provides functionality.
+var Env string
+
+func init() {
+	Env = os.Getenv("RSMON_ENV")
+	if Env == "" {
+		Env = os.Getenv("GO_ENV")
+	}
+	if Env == "" {
+		Env = "development"
+	}
+}