feat: publish standalone worker

Separate worker packaging and service lifecycle from the control plane.

config/env/env.go

@@ -0,0 +1,95 @@
+// Package env provides functionality.
+package env
+
+import (
+	"log"
+	"os"
+	"path/filepath"
+
+	"github.com/joho/godotenv"
+)
+
+func init() {
+	LoadEnvFiles()
+}
+
+// LoadEnvFiles provides functionality.
+func LoadEnvFiles() {
+	env := getEnvironment()
+	envFile := ".env." + env
+
+	if tryLoadEnv(envFile, env) {
+		return
+	}
+
+	if tryLoadEnv(".env", "") {
+		return
+	}
+
+	if env != "test" {
+		log.Printf("Warning: No .env file found")
+	} else {
+		log.Printf("Note: No .env file loaded in test environment (this is normal)")
+	}
+}
+
+func tryLoadEnv(filename, envName string) bool {
+	if godotenv.Load(filename) == nil {
+		if envName != "" {
+			log.Printf(".env.%s file loaded successfully", envName)
+		} else {
+			log.Println(".env file loaded successfully")
+		}
+		return true
+	}
+
+	if cwd := os.Getenv("CWD"); cwd != "" {
+		path := filepath.Join(cwd, filename)
+		if godotenv.Load(path) == nil {
+			if envName != "" {
+				log.Printf(".env.%s file loaded from %s", envName, cwd)
+			} else {
+				log.Printf(".env file loaded from %s", cwd)
+			}
+			return true
+		}
+	}
+
+	dir, _ := os.Getwd()
+	for {
+		path := filepath.Join(dir, filename)
+		if godotenv.Load(path) == nil {
+			if envName != "" {
+				log.Printf(".env.%s file loaded from %s", envName, dir)
+			} else {
+				log.Printf(".env file loaded from %s", dir)
+			}
+			return true
+		}
+		parent := filepath.Dir(dir)
+		if parent == dir {
+			break
+		}
+		if _, err := os.Stat(filepath.Join(dir, "go.mod")); err == nil {
+			break
+		}
+		dir = parent
+	}
+
+	return false
+}
+
+// getEnvironment determines the current environment from various environment variables
+func getEnvironment() string {
+	// Check RSMON_ENV first (rsmon-specific)
+	if env := os.Getenv("RSMON_ENV"); env != "" {
+		return env
+	}
+	// Then check GO_ENV (standard)
+	if env := os.Getenv("GO_ENV"); env != "" {
+		return env
+	}
+
+	// Default to development
+	return "development"
+}