feat(proxy): Add reverse proxy feature

app/utils/env.go

@@ -0,0 +1,35 @@
+package utils
+
+import (
+	"os"
+	"strconv"
+	"strings"
+)
+
+func GetEnv(key string, defaultValue string) string {
+	value := os.Getenv(key)
+	if value == "" {
+		return defaultValue
+	}
+	return value
+}
+
+func GetEnvInt(key string, defaultValue int) int {
+	value := os.Getenv(key)
+	if value == "" {
+		return defaultValue
+	}
+	intValue, err := strconv.Atoi(value)
+	if err != nil {
+		return defaultValue
+	}
+	return intValue
+}
+
+func GetEnvBool(key string, defaultValue bool) bool {
+	value := strings.ToLower(os.Getenv(key))
+	if value == "" {
+		return defaultValue
+	}
+	return value == "true" || value == "1" || value == "yes" || value == "y" || value == "on" || value == "enabled"
+}